Highway Safety Programs; Model Specifications for Calibrating Units for Breath Alcohol Testers; Conforming Products List of Calibrating Units for Breath Alcohol Testers, 34742-34748 [07-3060]
Download as PDF
<![CDATA[
sroberts on PROD1PC70 with NOTICES
34742
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
require between 4–8 days and when
empty the SRV would disconnect from
the buoy and leave the port.
Initially it is expected that Port
Dolphin would be capable of a natural
gas throughput of 400 mmscfd and
would eventually be capable of 800
mmscfd with a peak capacity of 1200
mmscfd by having at least one SRV
regasifying and discharging at all times.
The system would be designed so that
two SRVs can be moored
simultaneously for continuous
unloading of natural gas.
Port Dolphin Energy LLC is seeking
Federal Energy Regulatory Commission
(FERC) approval for the onshore
pipelines concurrent with this
deepwater port application. As required
by FERC regulations, FERC will also
maintain a docket for the FERC portion
of the project. The docket numbers are
CP07–191–000 and CP07–192–000. The
filing may also be viewed on the web at
https://www.ferc.gov using the
‘‘eLibrary’’ link. Enter the docket
number excluding the last three digits in
the docket number field to access the
document. For assistance, call (866)
208–3767 or TYY, (202) 502–8659.
In addition, pipelines and structures
such as the moorings may require
permits under Section 404 of the Clean
Water Act and Section 10 of the Rivers
and Harbors Act which are administered
by the Army Corps of Engineers
(USACE).
Port Dolphin will also require permits
from the Environmental Protection
Agency (EPA) pursuant to the
provisions of the Clean Air Act, as
amended, and the Clean Water Act, as
amended.
The new pipeline will be included in
the National Environmental Policy Act
(NEPA) review as part of the deepwater
port application process. FERC, EPA,
and the USACE among others, are
cooperating agencies and will assist in
the NEPA process as described in 40
CFR 1501.6; will be participating in the
scoping meetings; and will incorporate
the EIS into their permitting processes.
Comments sent to the FERC docket, EPA
or USACE will also be incorporated into
the DOT docket and EIS to ensure
consistency with the NEPA Process.
Construction of the deepwater port
would be expected to take
approximately 22 months with startup
of commercial operations following
construction, should a license be issued.
The deepwater port would be designed,
constructed and operated in accordance
with applicable codes and standards.
Privacy Act
The electronic form of all comments
received into the DOT docket are
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
available to any person and may be
searched by the name of the individual
submitting the comment (or signing the
comment, if submitted on behalf of an
association, business, labor union, etc.).
You may review DOT’s complete
Privacy Act Statement in the Federal
Register published on April 11, 2000
(Volume 65, Number 70; Pages 19477–
78) or you may visit https://dms.dot.gov.
(Authority: 49 CFR 1.66)
Dated: June 20, 2007.
By Order of the Maritime Administrator.
Daron T. Threet,
Secretary, Maritime Administration.
[FR Doc. E7–12243 Filed 6–22–07; 8:45 am]
BILLING CODE 4910–81–P
DEPARTMENT OF TRANSPORTATION
National Highway Traffic Safety
Administration
[Docket No. NHTSA–2007–28067]
Highway Safety Programs; Model
Specifications for Calibrating Units for
Breath Alcohol Testers; Conforming
Products List of Calibrating Units for
Breath Alcohol Testers
National Highway Traffic
Safety Administration (NHTSA), DOT.
ACTION: Notice.
AGENCY:
SUMMARY: This notice amends the Model
Specifications for Calibrating Units for
Breath Alcohol Testers (Model
Specifications) by adopting an alternate
test procedure for evaluating the
accuracy of both wet bath and dry gas
breath alcohol calibrating units infra-red
spectroscopy, as proposed in the
Federal Register on August 13, 1997 (62
FR 43416). Published with this notice is
an updated Conforming Products List of
Calibrating Units for Breath Alcohol
Testers (CPL) of calibrating units that
meet the Model Specifications. This
updated CPL includes 22 new listings—
8 wet bath units and 14 dry gas units.
DATES: Effective Date: The amendments
to the Model Specifications and the
issuance of the CPL become effective on
June 25, 2007.
FOR FURTHER INFORMATION CONTACT: For
technical issues: Ms. J. De Carlo Ciccel,
Office of Behavioral Safety Research,
NTI–130, National Highway Traffic
Safety Administration, 1200 New Jersey
Avenue, SE., Washington, DC 20590;
Telephone (202) 366–1694. For legal
issues: Ms. Allison Rusnak, Office of
Chief Counsel, NCC–113, National
Highway Traffic Safety Administration,
1200 New Jersey Avenue, SE.,
Washington, DC 20590; Telephone (202)
366–1834.
PO 00000
Frm 00080
Fmt 4703
Sfmt 4703
On August
18, 1975 (40 FR 36167), NHTSA
published a standard for Calibrating
Units for Breath Alcohol Testers. A
Qualified Products List of calibrating
units for breath alcohol testers that met
the standard was first issued on
November 30, 1976 (41 FR 53389).
On December 14, 1984, NHTSA
issued a notice to convert the mandatory
standards for calibrating units for breath
alcohol testers to Model Specification
for such devices (49 FR 48865) and to
establish a Conforming Products List
(CPL) of calibrating units meeting the
Model Specifications. Calibrating units
provide known concentrations of
ethanol vapor for the calibration or
calibration checks of instruments that
measure breath alcohol (BrAC).
On December 29, 1994, NHTSA
published a notice amending the Model
Specifications and updating the CPL for
calibrating units (59 FR 67377). The
notice also proposed and sought
comments about providing an alternate
test procedure using National Institute
for Standards and Technology (NIST)
Reference Gas Mixtures for evaluating
the accuracy and precision of dry-gas
ethanol calibrating units. The agency
amended the Model Specifications on
August 13, 1997 by incorporating the
NIST test procedure (62 FR 43416). In
that same notice, NHTSA updated the
CPL and proposed an alternate test
procedure for evaluating the accuracy
and precision for evaluating wet bath
and dry gas calibrating units using infrared spectroscopy.
Having received no comments
regarding the infra-red spectroscopy test
procedure, this notice adopts the
alternate procedure for evaluating wet
bath and dry gas calibrating units using
infra-red spectroscopy as proposed. This
notice also amends the CPL of
Calibrating Units for Breath Alcohol
Testers, adding 8 wet bath units and 14
dry gas units.
SUPPLEMENTARY INFORMATION:
A. Procedures for a Product Submission
Testing of calibrating units submitted
by manufacturers to these Model
Specifications will continue to be
conducted by the DOT Volpe National
Transportation Systems Center
(VNTSC). Tests will continue to be
conducted semi-annually or as
necessary. Manufacturers wishing to
submit calibrating units for testing must
apply to NHTSA for a test date (Office
of Behavioral Safety Research, NTI–130,
1200 New Jersey Avenue, SE.,
Washington, DC 20590, Telephone (202)
366–1694). Normally, at least 30 days
will be required from the date of
notification until the test can be
scheduled. One week prior to the
E:\FR\FM\25JNN1.SGM
25JNN1
sroberts on PROD1PC70 with NOTICES
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
scheduled initiation of the test program,
the manufacturer shall deliver at least
one unit of the device to be tested to:
VNTSC, RTV–4F, 55 Broadway,
Cambridge, MA 02142. The
manufacturer shall be responsible for
ensuring that the unit is operating
properly. If the manufacturer wishes to
submit a duplicate, backup unit, it may
do so.
When a manufacturer delivers a
device to be tested, it shall also deliver
to VNTSC specifications and drawings
that fully describe the unit and the
Operator’s Manual and Maintenance
Manual normally supplied with
purchase of the equipment. NHTSA will
consider claims of confidentiality under
49 CFR Part 512.
The manufacturer shall also deliver
the instructions that will accompany the
device when it is sold. The instructions
shall include information about the
procedures to be followed to protect
against possible condensation that
might occur as a result of freezing
during shipment and to correct for
atmospheric pressure. The instructions
shall also include information about any
offsets that may apply to the use of a
particular type of breath tester. NHTSA
will examine these instructions to
ensure that they provide sufficient
information about these matters.
Products submitted without this
information will not be tested.
The manufacturer will have the right
to check the calibrating unit between
arrival at VNTSC and the start of the test
and to ensure that the calibrating unit is
in proper working condition. The
manufacturer will have no access to the
calibrating unit during the tests. Any
malfunction of the calibrating unit that
results in failure to complete any of the
tests satisfactorily will result in a
finding that it does not conform to the
Model Specifications. If a unit fails to
conform, it may be resubmitted for
testing after appropriate corrective
action has been taken.
On the basis of these results, NHTSA
periodically will publish a CPL
identifying the calibrating units that
conform to the Model Specifications.
Re-testing of units will be conducted
when necessary. NHTSA intends to
modify and improve these Model
Specifications as new data and
improved test procedures become
available. (The test procedures may be
altered in specific instances, if
necessary, to meet the unique design
features of a calibrating unit). If these
Model Specifications are modified,
notification will be provided in the
Federal Register. If NHTSA determines
that re-testing to the modified
specifications is necessary, a
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
manufacturer whose equipment is listed
on the CPL will be notified to resubmit
the equipment for testing to the
modified specifications only.
NHTSA reserves the right to test any
unit on the CPL throughout its useful
life to ensure that the unit is performing
in accordance with the Model
Specifications. If at any time a
manufacturer plans to change the design
of a calibrating unit currently on the
CPL, the manufacturer shall submit the
proposed changes to the NHTSA Office
of Behavioral Safety Research for
review. Based on this review, NHTSA
will decide whether the change will
require re-testing of the unit. Normally,
such re-testing will be accomplished the
next time testing is performed.
Guidance to manufacturers on
considerations governing this decision
is available from NHTSA upon request.
NHTSA’s Office of Behavioral Safety
Research will be the point of contact for
information about acceptance testing
and field performance of equipment
already on the list. NHTSA requests that
users of calibrating units provide both
acceptance and field performance data
to NHTSA when such data is available.
Information from users will be used to:
(1) Help NHTSA determine whether
units continue to perform according to
the Model Specifications, and (2) ensure
that field use does not indicate
excessive breakdown or maintenance
problems.
If information gathered indicates that
a device on the CPL is not performing
in accordance with the Model
Specifications or demonstrates problems
involving the device, NHTSA will direct
VNTSC to conduct a special
investigation. This investigation may
include visits to users and additional
tests of the unit obtained from the open
market. If the investigation indicates
that the units actually sold on the
market are not meeting the Model
Specifications, then the manufacturer
will be notified that the unit may be
removed from the CPL. The
manufacturer shall have 30 days from
the date of notification to reply.
Based on the VNTSC investigation
and any data provided by the
manufacturer, NHTSA will decide
whether the unit should remain on the
CPL. Upon resubmission, the
manufacturer must submit a statement
describing what has been done to
overcome the problems that led to the
removal of the unit in question from the
CPL.
B. Infra-Red Spectroscopy
This notice incorporates into the
Model Specifications an alternate
procedure for evaluating wet bath and
PO 00000
Frm 00081
Fmt 4703
Sfmt 4703
34743
dry gas calibrating units using infra-red
spectroscopy. When infra-red
spectroscopy is used, the wet bath or
dry gas sample to be analyzed is passed
into a chamber through which infra-red
radiation is transmitted. The wavelength
of the transmitted radiation is chosen so
that some of it is absorbed by alcohol.
According to the Beer-Lambert Law of
absorption of radiation,1 the amount of
energy absorbed by the sample in the
chamber is proportional to the
concentration of the alcohol in the
sample. By measuring the amount of
radiation transmitted when the sample
chamber is empty and the amount
transmitted when the sample is present,
the concentration of the alcohol in the
sample can be determined.
The agency believes that use of infrared spectroscopy offers important
advantages. First, the technique can be
used to evaluate both wet bath
calibrating units and dry gas calibrating
units because surface interactions do
not affect the analysis. Second,
standards used in the evaluations can be
prepared at VNTSC, eliminating the
necessity of obtaining standards from an
outside source.
C. Conforming Products List
The CPL, which appears as an
Appendix to this notice, lists the
calibrating units that have been re-tested
to date at the lower BACs (i.e., at 0.020,
0.040, 0.080, and 0.160) and found to
conform to the Model Specifications
reprinted herein. The CPL also lists
devices that have not been tested at the
lower BAC levels (.020, .040, .080 and
.0160), but were listed on the CPL for
calibrating units on the basis that they
were tested and found to conform to the
earlier Model Specifications (49 FR
48864) when tested at BAC levels 0.050,
0.100 and 0.150. These devices are
identified on the CPL with an asterisk.
The CPL published today includes 22
new listings—8 wet bath units and 14
dry gas units. The wet bath units
include: CALWAVE dt–100, submitted
by Davtech Analytical Service, Canada;
Model 10–4D, Model 10–4D Revision A,
Model 2100 (aka: Model 210021), Model
2100 Revision A, and 590 submitted by
Guth Laboratories, Inc., Harrisburg,
Pennsylvania; Alcotest CU 34 submitted
by National Draeger, Inc., Durango,
Colorado; and Model 3402C–2K
submitted by RepCo Marketing, Inc.,
Raleigh, North Carolina. The dry gas
units 2 include: 103 ppm/108L and 270
1 Farrington Daniels & Robert Alberty, ‘‘Physical
Chemistry’’ 3d. Ed. John Wiley & Sons, New York,
1996.
2 The naming convention of the dry gas units
added to the CPL today is illustrative of the ethanol
E:\FR\FM\25JNN1.SGM
Continued
25JNN1
34744
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
ppm/30L submitted by Airgas, Inc.,
(previously know as Gateway Airgas,
Inc., A.G. Specialty Gas Co., or
Acetylene Gas Co) St. Louis, Missouri;
115 ppm/34L, 115 ppm/103L, 230 ppm/
34L, 230 ppm/103L, 260.5 ppm/58L,
260.5 ppm/537L, and 260.5 ppm/15L
submitted by Air Liquide, CALGAZ,
Cambridge, Maryland; and Scotty 28
0.040 BAC/28L, 0.045 BAC/28L, 0.080
BAC/28L, 0.100 BAC/28L, 0.105 BAC/
28L submitted by Scott Specialty Gases,
Inc., Plumsteadville, Pennsylvania. One
device, Toxitest Model ABS120 by
Federal Signal Corporation, is being
removed from the CPL as it is no longer
manufactured.
In consideration of the foregoing,
NHTSA amends the Model
Specifications for Calibrating United as
set forth below.
Model Specifications for Calibrating
United for Breath Alcohol Testers
1.0 Purpose and Scope
These specifications establish
performance criteria and methods for
testing of calibrating units which
provide known concentrations of
ethanol vapor for the calibration or
calibration checks of breath alcohol
testers. The results of this testing are
intended for use in the conformance
testing for the maintenance of a
Conforming Products List for calibrating
units.
sroberts on PROD1PC70 with NOTICES
2.0 Definitions
2.1 Conformance testing. Testing to
check the conformance of a product
with these model specifications in
advance of and independent of any
specific procurement action.
2.2 Concentration units. Blood
alcohol concentration: grams alcohol
per 100 milliliters blood or grams
alcohol per 210 liters of breath in
accordance with the Uniform Vehicle
Code, Section 11–903(a)(5).3 BrAC is
often used to indicate that the
measurement is a breath measurement,
i.e. grams alcohol per 210 liters of
breath.
2.3 Relative Standard Deviation
(RSD). The ratio of the standard
deviation (SD) of a series of
measurements to the mean of the series
expressed as a percentage:
RSD = (SD/Mean) × 100 percent
2.4 Standard Deviation (SD). A
common indication of precision in the
concentration in the volume of nitrogen dry gas.
Concentration is expressed in parts per million
(ppm) or marketed as breath alcohol concentrations
(BAC) and volume is expressed in Liters(L).
3 Available from National Committee on Uniform
Traffic Laws and Ordinances, 405 Church Street,
Evanston, IL 60201.
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
measurement of the concentration of a
succession of N vapor samples.
SD = {Sum (Xi¥Xm)2/(N-1)}1⁄2
Where:
Xi = a single measurement result;
Xm = the average of the measurements;
N = the number of measurements made in the
test.
2.5 Systematic Error (SE). An
indication of the accuracy of the
measurement of the concentration of a
succession of vapor samples.
SE = Xm ¥ test BrAC
2.6 Least Squares Fit Calibration
Curve. A Line fitted to a number of
measurement pairs, one the
independent value (X) and the other the
dependent value (Y), over a
measurement range.
The fitted line is of the form: Y = a
+ bX, where intercept, a = Ym¥bm, and
slope, b = (SumXiYi¥NXm) /
(SumXi2¥nXm2)
3.0
Tests and Requirements
If the BrAC of the CU is fixed, perform
the tests at the fixed BrAC; otherwise,
prepare the CU for testing at 0.08 BrAC
except as otherwise required in Test 1
below. Each of the tests requires 10
measurements to three decimal places
using the test procedure specified in 3.1,
3.2, or 3.3, respectively. The CU will be
operated according to the
manufacturer’s instructions. Unless
otherwise specified, the tests will be
performed in the absence of drafts and
at prevailing normal laboratory
temperature, humidity, and barometric
pressure. Performance requirements are:
¥0.002 BrAC ≤ SE ≤ +0.002 BrAC; RSD
≤ 2%
Test 1. Precision and Accuracy. Test
at each specified BrAc.
Test 1.1: 0.020 BrAC
Test 1.2: 0.040 BrAC
Test 1.3: 0.080 BrAC
Test 1.4: 0.160 BrAC
Test 2. Ambient Temperature. Use a
temperature chamber controllable to ±
°C. Soak the CU at the specified
temperature for 1 hour, being careful to
prevent drafts on the device, then test at
that temperature.
Test 2.1: 10 °C
Test 2.2: 30 °C
Test 3. Input Power. If the CU is
powered by nominal voltages of 120
volts AC of 12 volts DC, condition the
device for one half hour at the
appropriate input voltage specified
below, then test at that voltage. Monitor
the input power with a voltmeter
accurate to ± 2% full scale in the range
used and re-adjust the voltage, if
necessary. If the voltage is Ac, conduct
test 3.1 and 3.2.
PO 00000
Frm 00082
Fmt 4703
Sfmt 4703
If the voltage is DC, conduct tests 3.3
and 3.4.
Test 3.1: 108 Volts/AC
Test 3.2: 123 Volts/AC
Test 3.3: 11 Volts/DC
Test 3.4: 15 Volts/DC
Test 4. Electrical Safety Inspection.
Examine the CU for protection of the
operator from electrical shock. Examine
for proper use of input power fuses, and
verify that there are no exposed male
connectors at high potential. Determine
that overheating does not occur during
operation and that undue fire hazards
do not exist.
3.1 Test Procedure (Original, wet-bath
calibrating units)
Equipment and Supplies: Gas
Chromatograph capable of complete
resolution of ethanol in test samples,
with heated gas sampling valve. Water
bath thermostated at 34 °C ± 0.1 °C.
Glass Reference Sample Bottles (300 ml
capacity or greater) with Stopper and
Inlet and Outlet Air Hoses (see Figure
1). Hoses should be about 1/8’’ OD
Teflon tubing. Reference Ethanol
Solutions prepared using Class A
glassware and American Chemical
Society reagent grade ethanol or USP
grade ethanol. The purity of the ethanol
used shall be compared with the
National Institute of standards and
Technology (NIST) Standard Reference
Material for ethanol. Use the value of
Harger, et al., for the partition ratio for
concentration of ethanol in headspace to
concentration in solution at 34 °C, Ka/
w = 0.000393 4 to prepare two solutions
which, when thermostated at 34 °C,
produce headspace ethanol vapor
concentrations that bracket the test
BrAC by no more than ± 20%. Small Air
Pump for bubbling air through reference
solutions (see Figure 1).
Step 1. Prepare the Gas
Chromatograph for measurement of
vapor samples. Adjust instrument
temperatures, gas flows, detector, and
recording device for optimum response
for ethanol. Prepare the CU for use
according to manufacturer’s
instructions.
Step 2. Fill two reference solution
bottles to 3⁄4 full with above reference
solutions. Insert stopper assemblies
with bubble line and alcohol vapor line
in place and put bottles in the water
bath with water level up to the stopper.
Connect air pump to bubble line.
Connect alcohol vapor line to gas
chromatograph sampling valve inlet
fitting. Allow 1 hour for temperature
equilibrium to be achieved.
4 RN Harger, BB Raney, EG Bridwell, MF Kitchel
J. Biol. Chem. 183, 197–213 (1950). Additional data
from Harger in a private communication (see 49 FR
48869).
E:\FR\FM\25JNN1.SGM
25JNN1
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
34745
equivalent BrAC of the vapor sample by
the peak height obtained for that
sample. From the 10 samples, obtain the
mean and the RSD of the conversion
factors. If the RSD obtained fails to meet
the criteria for RSD in 3.0, perform
necessary troubleshooting and repeat
the procedure from Step 1. Use the
mean of the conversion factors to
calculate the BrAC for each of the 10
ethanol peaks obtained in Step 4.
Calculate the mean, the RSD, and the
systematic error of the experimental
BrACs.
Alternate procedure for evaluation of
dry gaseous ethanol calibration devices.
This procedure substitutes the use of
NISTRGMs in place of the wet bath
reference samples when evaluating dry
gas CUs.
Step A1. Connect one of the
NISTRGM cylinders to the inlet of the
gas chromatograph sampling valve and
pass reference gas through the sampling
system at a rate just sufficient to
thoroughly flush the system in about 10
seconds. Allow the sample to relax to
atmospheric pressure, then inject the
sample onto the column. In this way,
obtain 5 chromatograms of the reference
gas.
Step A2. Repeat Step A1 for each of
the four NISTRGM reference gas
mixtures.
Step A3. Calculate the RSD of the
concentration divided by peak height
data obtained in Step A1 and Step A2.
If the calculated RSD meets the criteria
of 3.0, calculate the slope and intercept
of the least squares fit calibration line
for conversion of peak height to BrAC.
Using the average peak height of each
NISTRGM and the slope and intercept
data, calculate the concentration of each
NISTRGM. If the resulting
concentrations are within the stated
accuracy of the NISTRGM, proceed to
Step A4.
Step A4. Connect the calibrating
device to the inlet of the gas
The following alternate method for
the evaluation of dry gaseous ethanol
calibration devices is presented.
Additional required material: For the
alternate method for evaluation of dry
gaseous ethanol calibration devices, the
following will be required: Four
cylinders of National Institute of
Standards and Technology ethanol-ininert gas Technical Reference Gas
Mixtures (NISTRGMs) which span the
BrAC range 0.01 to 0.16.
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
PO 00000
Frm 00083
Fmt 4703
Sfmt 4703
E:\FR\FM\25JNN1.SGM
25JNN1
EN25JN07.000</GPH>
while avoiding over-pressurizing of the
sampling system. To prevent
condensation of alcohol, warm the
transfer line if necessary. Allow the
sample to relax to atmospheric pressure,
then inject the sample onto the column.
In this way, obtain 10 ethanol
chromatograms using the CU device.
Step 5. Repeat step 3 using the second
reference solution.
Step 6. Calculations. Peak height to
BrAC conversion factor. For each
ethanol peak obtained in Step 3 and
Step 5, calculate a conversion factor for
ethanol concentration by dividing the
3.2 Test Procedures (for dry gas
calibrating units). Alternate Test
Method using National Institute of
Standards and Technology Reference
Gas Mixtures (NISTRGMs) in place of
wet bath reference samples
sroberts on PROD1PC70 with NOTICES
Step 3. Turn on air pump which has
been pre-set to pump air through the
reference solution bottle-gas
chromatograph sampling assembly at a
rate just sufficient to thoroughly flush
the system in 10 seconds. After flushing
is complete, allow the sample to relax
to atmospheric pressure, then inject the
reference sample onto the gas
chromatograph column. In this way,
obtain 5 chromatograms of one of the
reference solution headspace ethanol
vapors.
Step 4. Thoroughly flush the sample
loop with vapors from the CU device,
34746
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
chromatograph sampling system and
allow the calibrating device gas to flow
at a rate just sufficient to thoroughly
flush the sampling system in about 10
seconds. Allow the sample to relax to
atmospheric pressure, then inject the
sample onto the column. In this way,
obtain 10 chromatograms of the
calibrating device gas.
Step A5. Calculations. Using the peak
height data obtained in Step A4 and
intercept and slope data obtained in
Step A3, calculate the BrAC for each of
the 10 peak heights. Calculate the mean,
RSD, and systematic error of the
calculated BrACs.
3.3 Test Procedures (for dry gas or wet
bath calibrating units)
This alternate procedure uses infrared spectroscopy that is suitable for
evaluating ethanol vapor samples from
either wet-bath CUs or from dry-gas
CUs.
3.3.1 General. This method uses the
Beer-Lambert Law of absorption of
radiant energy by fluids.
I = Io × e¥abc
Where:
Io is the energy entering the sample chamber
of a spectrophotometer containing the
sample to be analyzed.
I is the energy transmitted from the sample
chamber.
a is the absorptivity of the sample.
b is the radiation path length of the sample
chamber.
c is the concentration of the sample in the
sample chamber.
sroberts on PROD1PC70 with NOTICES
A convenient form of the BeerLambert law is
Ln(Io/I) = abc
where the term Ln(Io/I), the logarithm of
the ratio of incident to transmitted
energy, is called the absorbance of the
sample. In the procedure described
below, the terms a and b are treated as
a single quantity, ab, and the term c is
BrAC.
3.3.2 Test Procedure.
Equipment and Supplies. Infra-red
Spectrophotometer with sample
chamber that can be heated to above 40
°C. A non-dispersive instrument with
appropriate band pass filters and
configured to measure breath alcohol
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
samples, such as an infra-red evidential
breath tester listed on the NHTSA
Conforming Products List for evidential
breath testers may be used. The detector
voltage of the instrument must be
accessible for measurement. The
sampling hoses of the device may be
altered for more convenient processing
of test samples. Water bath thermostated
at 34 °C ± 0.1 °C. Glass Reference
Sample Bottles (300 ml capacity or
greater) and Stoppers with Bubble and
Alcohol Vapor lines (see Figure 2).
Reference Ethanol Solutions prepared
using Class A glassware and American
Chemical Society reagent grade ethanol
or USP grade ethanol. The purity of the
ethanol used shall be compared with the
National Institute of Standards and
Technology (NIST) Standard Reference
Material for ethanol. Use the value of
Harger, et al., for the partition ratio for
concentration of ethanol in headspace to
concentration in solution at 34 °C, Ka/w
= 0.0003932 to prepare two aqueous
alcohol solutions which bracket the test
BrAC by no more than ± 20%. A
cylinder of inert Flushing Gas, which is
optically clear in the absorption region
used for measurement. This gas will be
used to flush the sample chamber of the
spectrophotometer and to deliver
reference headspace vapors and wet
bath sample vapors into the sample
chamber. Pressure regulating valve with
Teflon delivery hose for controlling flow
and delivery of flushing gas.
Step B1. Prepare the spectrometer for
measurement of vapor samples. Prepare
the CU for use according to
manufacturer’s instructions.
Step B2. Fill a reference sample
bottles to 3⁄4 full with water and two
reference sample bottles to 3⁄4 full with
the above reference solutions. Insert
stopper assemblies ensuring that the
end of the bubble line reaches to at least
4 inches below the surface of the
solution, then place the bottles in the
water bath with water level up to the
stopper. Allow 1 hour for temperature
equilibrium to be achieved.
Step B3. Connect the bubble line of
the sample bottle containing water only
to the flushing gas valve and the vapor
line to the spectrophotometer inlet and
PO 00000
Frm 00084
Fmt 4703
Sfmt 4703
flush the sample chamber with water
vapor and obtain the detector voltage
reading. Then flush the detector
chamber with flushing gas only and
obtain the detector reading. Repeat 2
times to obtain 3 sets of readings. If the
CU being evaluated is a wet bath device,
skip this step and proceed to Step B4.
Step B4. In the manner of Step B3,
obtain 5 sets of detector readings using
one of the reference alcohol solution
bottles.
Step B5. In the manner of Step B3,
obtain 10 sets of detector readings from
the CU being evaluated. If the CU is a
wet bath device, use the flushing gas to
fill the sample chamber, operating the
device according to manufacturer’s
instructions. If the CU device is dry gas
device, fill the sample chamber
according to manufacturer’s
instructions.
Step B6. Repeat Step B5 using the
other reference alcohol solution bottle.
Step B7. Repeat Step B3.
Step B8. Calculations. For each
measurement pair, Io is the detector
voltage obtained for the flushing gas
alone in the sample chamber and I is the
voltage obtained for the flushing gas
with reference sample or test sample in
the sample chamber corrected for water
vapor absorption, i.e.; the detector
voltage obtained for headspace reference
samples at 0.000 BrAC. Use the average
of the 6 voltage readings obtained for
the water samples for the correction for
water vapor absorption (I = Isample ¥
Iwater). In the case of wet bath device
samples, there is no correction for water
vapor absorption. If the detector is
biased, it will be the difference between
the bias voltage and the above voltage.
Calculate the absorbance for each of
the 10 reference samples. Divide each
absorbance by the corresponding BrAC
of the sample. Obtain the mean (which
is the factor ab), SD, and RSD for the 10
ratios. If the RSD is more than 2%,
troubleshoot the procedure and repeat.
Calculate the absorbance for each of
the 10 CU test samples. Divide each by
the ab factor to obtain the BrAC for each
of the 10 CU samples. Obtain the mean,
SD, RSD, and SE.
E:\FR\FM\25JNN1.SGM
25JNN1
34747
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
Appendix—Conforming Products List
of Calibrating Units for Breath Alcohol
Testers [Manufacturer and Calibrating
Unit] 1
CONFORMING PRODUCTS LIST OF CALIBRATING UNITS FOR BREATH ALCOHOL TESTERS
Type of device
Manufacturers
1. Airgas, Inc. (Formerly known as: Gateway Airgas, AG Specialty Gas, or Acetylene Gas Co.), St. Louis, MO
• Ethanol Breath Alcohol Standard .................................................................................................................................
• 103 parts per million (ppm)/108 Liters (L) ....................................................................................................................
• 270 ppm/30L .................................................................................................................................................................
2. Air Liquide CALGAZ, Cambridge, MD
• 115 ppm/34L .................................................................................................................................................................
• 115 ppm/105L ...............................................................................................................................................................
• 230 ppm/34L .................................................................................................................................................................
• 230 ppm/105L ...............................................................................................................................................................
• 260.5 ppm/58L ..............................................................................................................................................................
• 260.5 ppm/537L ............................................................................................................................................................
• 260.5 ppm/15L ..............................................................................................................................................................
3. CMI, Inc., Owensboro, KY
• Toxitest II ......................................................................................................................................................................
4. Davtech Analytical Services, Canada
• CALWAVE dT–100 .......................................................................................................................................................
5. Guth Laboratories, Inc., Harrisburg, PA
• Model 34C Simulator (variations: Model 34C Cal DOJ, 34–C–FM, and 34C–NPAS) .................................................
• Model 3412 ...................................................................................................................................................................
• Model 10–4 and 10–4D ................................................................................................................................................
• Model 10–4D Revision A ..............................................................................................................................................
• Model 1214 ...................................................................................................................................................................
• Model 2100 (formerly Model 210021) ..........................................................................................................................
• Model 2100 Revision A .................................................................................................................................................
• 590 ................................................................................................................................................................................
6. Intoximeters, Inc., St. Louis, MO
• Alco Breath Alcohol Standards* ...................................................................................................................................
7. Lion Laboratories, Cardiff, Wales, UK (a subsidiary of CMI, Inc.)
• AlcoCal Breath Alcohol Standard .................................................................................................................................
8. Liquid Technology Corp., Orlando, FL
• Ethanol-in-Nitrogen .......................................................................................................................................................
9. Luckey Laboratories, Inc., San Bernardino, CA
• Simulator* ......................................................................................................................................................................
1 Infra-red (IR) and fuel cell breath testers may be
calibrated with either wet bath or dry gas CUs.
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
However, it is inadvisable to use dry gas CUs when
calibrating gas chromatograph EBTs.
PO 00000
Frm 00085
Fmt 4703
Sfmt 4703
E:\FR\FM\25JNN1.SGM
25JNN1
Wet bath
X
X
X
................
X
X
X
X
X
X
X
................
................
................
................
................
................
................
................
X
................
X
................
................
................
................
................
................
................
................
X
X
X
X
X
X
X
X
X
................
X
X
................
................
X
EN25JN07.001</GPH>
sroberts on PROD1PC70 with NOTICES
Dry gas
34748
Federal Register / Vol. 72, No. 121 / Monday, June 25, 2007 / Notices
CONFORMING PRODUCTS LIST OF CALIBRATING UNITS FOR BREATH ALCOHOL TESTERS—Continued
Type of device
Manufacturers
Dry gas
10. National Draeger, Inc., Durango, CO
• Mark II–A .......................................................................................................................................................................
• Alcotest CU 34 ..............................................................................................................................................................
11. PLD of Florida, Inc., Rockledge, FL
• BA 500 ..........................................................................................................................................................................
12. Protection Devices, Inc., U.S. Alcohol Testing, Inc., Rancho Cucamonga, CA
• LS34 Model 6100* ........................................................................................................................................................
13. RepCo Marketing, Inc., Raleigh, NC
• AS–1 .............................................................................................................................................................................
• Model 3402C .................................................................................................................................................................
• Model 3402C–2K ..........................................................................................................................................................
14. Scott Specialty Gases, Inc., Plumsteadville, PA
• Model EBSTM Gaseous Ethanol Breath Standard .......................................................................................................
• Scotty 28 0.040 BAC/28L .............................................................................................................................................
• Scotty 28 0.045 BAC/28L .............................................................................................................................................
• Scotty 28 0.080 BAC/28L .............................................................................................................................................
• Scotty 28 0.100 BAC/28L .............................................................................................................................................
• Scotty 28 0.105 BAC/28L .............................................................................................................................................
15. Smith & Wesson Electronic Co., Springfield, MA
• Mark II–A Simulator* .....................................................................................................................................................
16. Systems Innovation, Inc., Hallstead, PA
• True-Test MD 901* .......................................................................................................................................................
17. U.S. Alcohol Testing, Rancho Cucamonga, CA
• Alco-Simulator 2000* ....................................................................................................................................................
• Alco-Simulator 61000 ....................................................................................................................................................
Wet bath
................
................
X
X
................
X
................
X
................
................
................
X
X
X
X
X
X
X
X
X
................
................
................
................
................
................
................
X
................
X
................
................
X
X
*Six instruments marked with an asterisk (*) meet the Model Specifications in 49 FR 48864 (December 14, 1984), i.e. instruments tested at
0.050, 0.100, and 0.150). Instruments not marked with an asterisk meet the model specifications detailed in this notice, and were tested at 0.020,
0.040, 0.080, and 0.160 BrAC.
Authority: 23 U.S.C. 402; delegations of
authority at 49 CFR 1.50 and 501.
SUPPLEMENTARY INFORMATION:
Issued on: June 25, 2007.
Marilena Amoni,
Associate Administrator for the Office of
Research and Program Development.
[FR Doc. 07–3060 Filed 6–22–07; 8:45 am]
BILLING CODE 4910–59–M
DEPARTMENT OF TRANSPORTATION
Surface Transportation Board
[STB Ex Parte No. 290 (Sub–No. 5) (2007–
3)]
Quarterly Rail Cost Adjustment Factor
Surface Transportation Board,
Department of Transportation.
ACTION: Approval of rail cost adjustment
factor.
sroberts on PROD1PC70 with NOTICES
AGENCY:
SUMMARY: The Board has approved the
third quarter 2007 rail cost adjustment
factor (RCAF) and cost index filed by
the Association of American Railroads.
The third quarter 2007 RCAF
(Unadjusted) is 1.197. The third quarter
2007 RCAF (Adjusted) is 0.558. The
third quarter 2007 RCAF–5 is 0.531.
DATES: Effective Date: July 1, 2007.
FOR FURTHER INFORMATION CONTACT: Mac
Frampton, (202) 245–0317. [Federal
Information Relay Service (FIRS) for the
hearing impaired: 1–800–877–8339.]
VerDate Aug<31>2005
23:08 Jun 22, 2007
Jkt 211001
DEPARTMENT OF THE TREASURY
Additional information is contained in
the Board’s decision, which is available
on our Web site https://www.stb.dot.gov.
To purchase a copy of the full decision,
write to, e-mail or call the Board’s
contractor, ASAP Document Solutions;
9332 Annapolis Rd., Suite 103, Lanham,
MD 20706; e-mail asapdc@verizon.net;
phone (202) 306–4004. [Assistance for
the hearing impaired is available
through FIRS: 1–800–877–8339.]
This action will not significantly
affect either the quality of the human
environment or energy conservation.
Pursuant to 5 U.S.C. 605(b), we
conclude that our action will not have
a significant economic impact on a
substantial number of small entities
within the meaning of the Regulatory
Flexibility Act.
Decided: June 19, 2007.
By the Board, Chairman Nottingham, Vice
Chairman Buttrey, and Commissioner
Mulvey.
Vernon A. Williams,
Secretary.
[FR Doc. E7–12163 Filed 6–22–07; 8:45 am]
BILLING CODE 4915–01–P
PO 00000
Frm 00086
Fmt 4703
Sfmt 4703
Office of Thrift Supervision
Submission for OMB Review;
Comment Request—Interagency
Guidance on Asset Securitization
Activities
Office of Thrift Supervision
(OTS), Treasury.
ACTION: Notice and request for comment.
AGENCY:
SUMMARY: The proposed information
collection requirement described below
has been submitted to the Office of
Management and Budget (OMB) for
review and approval, as required by the
Paperwork Reduction Act of 1995. OTS
is soliciting public comments on the
proposal.
DATES: Submit written comments on or
before July 25, 2007.
ADDRESSES: Send comments, referring to
the collection by title of the proposal or
by OMB approval number, to OMB and
OTS at these addresses: Office of
Information and Regulatory Affairs,
Attention: Desk Officer for OTS, U.S.
Office of Management and Budget, 725–
17th Street, NW., Room 10235,
Washington, DC 20503, or by fax to
(202) 395–6974; and Information
Collection Comments, Chief Counsel’s
Office, Office of Thrift Supervision,
1700 G Street, NW., Washington, DC
E:\FR\FM\25JNN1.SGM
25JNN1
]]>Agencies
[Federal Register Volume 72, Number 121 (Monday, June 25, 2007)]
[Notices]
[Pages 34742-34748]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 07-3060]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
National Highway Traffic Safety Administration
[Docket No. NHTSA-2007-28067]
Highway Safety Programs; Model Specifications for Calibrating
Units for Breath Alcohol Testers; Conforming Products List of
Calibrating Units for Breath Alcohol Testers
AGENCY: National Highway Traffic Safety Administration (NHTSA), DOT.
ACTION: Notice.
-----------------------------------------------------------------------
SUMMARY: This notice amends the Model Specifications for Calibrating
Units for Breath Alcohol Testers (Model Specifications) by adopting an
alternate test procedure for evaluating the accuracy of both wet bath
and dry gas breath alcohol calibrating units infra-red spectroscopy, as
proposed in the Federal Register on August 13, 1997 (62 FR 43416).
Published with this notice is an updated Conforming Products List of
Calibrating Units for Breath Alcohol Testers (CPL) of calibrating units
that meet the Model Specifications. This updated CPL includes 22 new
listings--8 wet bath units and 14 dry gas units.
DATES: Effective Date: The amendments to the Model Specifications and
the issuance of the CPL become effective on June 25, 2007.
FOR FURTHER INFORMATION CONTACT: For technical issues: Ms. J. De Carlo
Ciccel, Office of Behavioral Safety Research, NTI-130, National Highway
Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington,
DC 20590; Telephone (202) 366-1694. For legal issues: Ms. Allison
Rusnak, Office of Chief Counsel, NCC-113, National Highway Traffic
Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC
20590; Telephone (202) 366-1834.
SUPPLEMENTARY INFORMATION: On August 18, 1975 (40 FR 36167), NHTSA
published a standard for Calibrating Units for Breath Alcohol Testers.
A Qualified Products List of calibrating units for breath alcohol
testers that met the standard was first issued on November 30, 1976 (41
FR 53389).
On December 14, 1984, NHTSA issued a notice to convert the
mandatory standards for calibrating units for breath alcohol testers to
Model Specification for such devices (49 FR 48865) and to establish a
Conforming Products List (CPL) of calibrating units meeting the Model
Specifications. Calibrating units provide known concentrations of
ethanol vapor for the calibration or calibration checks of instruments
that measure breath alcohol (BrAC).
On December 29, 1994, NHTSA published a notice amending the Model
Specifications and updating the CPL for calibrating units (59 FR
67377). The notice also proposed and sought comments about providing an
alternate test procedure using National Institute for Standards and
Technology (NIST) Reference Gas Mixtures for evaluating the accuracy
and precision of dry-gas ethanol calibrating units. The agency amended
the Model Specifications on August 13, 1997 by incorporating the NIST
test procedure (62 FR 43416). In that same notice, NHTSA updated the
CPL and proposed an alternate test procedure for evaluating the
accuracy and precision for evaluating wet bath and dry gas calibrating
units using infra-red spectroscopy.
Having received no comments regarding the infra-red spectroscopy
test procedure, this notice adopts the alternate procedure for
evaluating wet bath and dry gas calibrating units using infra-red
spectroscopy as proposed. This notice also amends the CPL of
Calibrating Units for Breath Alcohol Testers, adding 8 wet bath units
and 14 dry gas units.
A. Procedures for a Product Submission
Testing of calibrating units submitted by manufacturers to these
Model Specifications will continue to be conducted by the DOT Volpe
National Transportation Systems Center (VNTSC). Tests will continue to
be conducted semi-annually or as necessary. Manufacturers wishing to
submit calibrating units for testing must apply to NHTSA for a test
date (Office of Behavioral Safety Research, NTI-130, 1200 New Jersey
Avenue, SE., Washington, DC 20590, Telephone (202) 366-1694). Normally,
at least 30 days will be required from the date of notification until
the test can be scheduled. One week prior to the
[[Page 34743]]
scheduled initiation of the test program, the manufacturer shall
deliver at least one unit of the device to be tested to: VNTSC, RTV-4F,
55 Broadway, Cambridge, MA 02142. The manufacturer shall be responsible
for ensuring that the unit is operating properly. If the manufacturer
wishes to submit a duplicate, backup unit, it may do so.
When a manufacturer delivers a device to be tested, it shall also
deliver to VNTSC specifications and drawings that fully describe the
unit and the Operator's Manual and Maintenance Manual normally supplied
with purchase of the equipment. NHTSA will consider claims of
confidentiality under 49 CFR Part 512.
The manufacturer shall also deliver the instructions that will
accompany the device when it is sold. The instructions shall include
information about the procedures to be followed to protect against
possible condensation that might occur as a result of freezing during
shipment and to correct for atmospheric pressure. The instructions
shall also include information about any offsets that may apply to the
use of a particular type of breath tester. NHTSA will examine these
instructions to ensure that they provide sufficient information about
these matters. Products submitted without this information will not be
tested.
The manufacturer will have the right to check the calibrating unit
between arrival at VNTSC and the start of the test and to ensure that
the calibrating unit is in proper working condition. The manufacturer
will have no access to the calibrating unit during the tests. Any
malfunction of the calibrating unit that results in failure to complete
any of the tests satisfactorily will result in a finding that it does
not conform to the Model Specifications. If a unit fails to conform, it
may be resubmitted for testing after appropriate corrective action has
been taken.
On the basis of these results, NHTSA periodically will publish a
CPL identifying the calibrating units that conform to the Model
Specifications.
Re-testing of units will be conducted when necessary. NHTSA intends
to modify and improve these Model Specifications as new data and
improved test procedures become available. (The test procedures may be
altered in specific instances, if necessary, to meet the unique design
features of a calibrating unit). If these Model Specifications are
modified, notification will be provided in the Federal Register. If
NHTSA determines that re-testing to the modified specifications is
necessary, a manufacturer whose equipment is listed on the CPL will be
notified to resubmit the equipment for testing to the modified
specifications only.
NHTSA reserves the right to test any unit on the CPL throughout its
useful life to ensure that the unit is performing in accordance with
the Model Specifications. If at any time a manufacturer plans to change
the design of a calibrating unit currently on the CPL, the manufacturer
shall submit the proposed changes to the NHTSA Office of Behavioral
Safety Research for review. Based on this review, NHTSA will decide
whether the change will require re-testing of the unit. Normally, such
re-testing will be accomplished the next time testing is performed.
Guidance to manufacturers on considerations governing this decision is
available from NHTSA upon request.
NHTSA's Office of Behavioral Safety Research will be the point of
contact for information about acceptance testing and field performance
of equipment already on the list. NHTSA requests that users of
calibrating units provide both acceptance and field performance data to
NHTSA when such data is available. Information from users will be used
to: (1) Help NHTSA determine whether units continue to perform
according to the Model Specifications, and (2) ensure that field use
does not indicate excessive breakdown or maintenance problems.
If information gathered indicates that a device on the CPL is not
performing in accordance with the Model Specifications or demonstrates
problems involving the device, NHTSA will direct VNTSC to conduct a
special investigation. This investigation may include visits to users
and additional tests of the unit obtained from the open market. If the
investigation indicates that the units actually sold on the market are
not meeting the Model Specifications, then the manufacturer will be
notified that the unit may be removed from the CPL. The manufacturer
shall have 30 days from the date of notification to reply.
Based on the VNTSC investigation and any data provided by the
manufacturer, NHTSA will decide whether the unit should remain on the
CPL. Upon resubmission, the manufacturer must submit a statement
describing what has been done to overcome the problems that led to the
removal of the unit in question from the CPL.
B. Infra-Red Spectroscopy
This notice incorporates into the Model Specifications an alternate
procedure for evaluating wet bath and dry gas calibrating units using
infra-red spectroscopy. When infra-red spectroscopy is used, the wet
bath or dry gas sample to be analyzed is passed into a chamber through
which infra-red radiation is transmitted. The wavelength of the
transmitted radiation is chosen so that some of it is absorbed by
alcohol. According to the Beer-Lambert Law of absorption of
radiation,\1\ the amount of energy absorbed by the sample in the
chamber is proportional to the concentration of the alcohol in the
sample. By measuring the amount of radiation transmitted when the
sample chamber is empty and the amount transmitted when the sample is
present, the concentration of the alcohol in the sample can be
determined.
---------------------------------------------------------------------------
\1\ Farrington Daniels & Robert Alberty, ``Physical Chemistry''
3d. Ed. John Wiley & Sons, New York, 1996.
---------------------------------------------------------------------------
The agency believes that use of infra-red spectroscopy offers
important advantages. First, the technique can be used to evaluate both
wet bath calibrating units and dry gas calibrating units because
surface interactions do not affect the analysis. Second, standards used
in the evaluations can be prepared at VNTSC, eliminating the necessity
of obtaining standards from an outside source.
C. Conforming Products List
The CPL, which appears as an Appendix to this notice, lists the
calibrating units that have been re-tested to date at the lower BACs
(i.e., at 0.020, 0.040, 0.080, and 0.160) and found to conform to the
Model Specifications reprinted herein. The CPL also lists devices that
have not been tested at the lower BAC levels (.020, .040, .080 and
.0160), but were listed on the CPL for calibrating units on the basis
that they were tested and found to conform to the earlier Model
Specifications (49 FR 48864) when tested at BAC levels 0.050, 0.100 and
0.150. These devices are identified on the CPL with an asterisk.
The CPL published today includes 22 new listings--8 wet bath units
and 14 dry gas units. The wet bath units include: CALWAVE dt-100,
submitted by Davtech Analytical Service, Canada; Model 10-4D, Model 10-
4D Revision A, Model 2100 (aka: Model 210021), Model 2100 Revision A,
and 590 submitted by Guth Laboratories, Inc., Harrisburg, Pennsylvania;
Alcotest CU 34 submitted by National Draeger, Inc., Durango, Colorado;
and Model 3402C-2K submitted by RepCo Marketing, Inc., Raleigh, North
Carolina. The dry gas units \2\ include: 103 ppm/108L and 270
[[Page 34744]]
ppm/30L submitted by Airgas, Inc., (previously know as Gateway Airgas,
Inc., A.G. Specialty Gas Co., or Acetylene Gas Co) St. Louis, Missouri;
115 ppm/34L, 115 ppm/103L, 230 ppm/34L, 230 ppm/103L, 260.5 ppm/58L,
260.5 ppm/537L, and 260.5 ppm/15L submitted by Air Liquide, CALGAZ,
Cambridge, Maryland; and Scotty 28 0.040 BAC/28L, 0.045 BAC/28L, 0.080
BAC/28L, 0.100 BAC/28L, 0.105 BAC/28L submitted by Scott Specialty
Gases, Inc., Plumsteadville, Pennsylvania. One device, Toxitest Model
ABS120 by Federal Signal Corporation, is being removed from the CPL as
it is no longer manufactured.
---------------------------------------------------------------------------
\2\ The naming convention of the dry gas units added to the CPL
today is illustrative of the ethanol concentration in the volume of
nitrogen dry gas. Concentration is expressed in parts per million
(ppm) or marketed as breath alcohol concentrations (BAC) and volume
is expressed in Liters(L).
---------------------------------------------------------------------------
In consideration of the foregoing, NHTSA amends the Model
Specifications for Calibrating United as set forth below.
Model Specifications for Calibrating United for Breath Alcohol Testers
1.0 Purpose and Scope
These specifications establish performance criteria and methods for
testing of calibrating units which provide known concentrations of
ethanol vapor for the calibration or calibration checks of breath
alcohol testers. The results of this testing are intended for use in
the conformance testing for the maintenance of a Conforming Products
List for calibrating units.
2.0 Definitions
2.1 Conformance testing. Testing to check the conformance of a
product with these model specifications in advance of and independent
of any specific procurement action.
2.2 Concentration units. Blood alcohol concentration: grams alcohol
per 100 milliliters blood or grams alcohol per 210 liters of breath in
accordance with the Uniform Vehicle Code, Section 11-903(a)(5).\3\ BrAC
is often used to indicate that the measurement is a breath measurement,
i.e. grams alcohol per 210 liters of breath.
---------------------------------------------------------------------------
\3\ Available from National Committee on Uniform Traffic Laws
and Ordinances, 405 Church Street, Evanston, IL 60201.
---------------------------------------------------------------------------
2.3 Relative Standard Deviation (RSD). The ratio of the standard
deviation (SD) of a series of measurements to the mean of the series
expressed as a percentage:
RSD = (SD/Mean) x 100 percent
2.4 Standard Deviation (SD). A common indication of precision in
the measurement of the concentration of a succession of N vapor
samples.
SD = {Sum (Xi-Xm)2/(N-1){time} \1/2\
Where:
Xi = a single measurement result;
Xm = the average of the measurements;
N = the number of measurements made in the test.
2.5 Systematic Error (SE). An indication of the accuracy of the
measurement of the concentration of a succession of vapor samples.
SE = Xm - test BrAC
2.6 Least Squares Fit Calibration Curve. A Line fitted to a number
of measurement pairs, one the independent value (X) and the other the
dependent value (Y), over a measurement range.
The fitted line is of the form: Y = a + bX, where intercept, a =
Ym-bm, and slope, b =
(SumXiYi-NXm) /
(SumXi2-nXm2)
3.0 Tests and Requirements
If the BrAC of the CU is fixed, perform the tests at the fixed
BrAC; otherwise, prepare the CU for testing at 0.08 BrAC except as
otherwise required in Test 1 below. Each of the tests requires 10
measurements to three decimal places using the test procedure specified
in 3.1, 3.2, or 3.3, respectively. The CU will be operated according to
the manufacturer's instructions. Unless otherwise specified, the tests
will be performed in the absence of drafts and at prevailing normal
laboratory temperature, humidity, and barometric pressure. Performance
requirements are:
-0.002 BrAC <= SE <= +0.002 BrAC; RSD <= 2%
Test 1. Precision and Accuracy. Test at each specified BrAc.
Test 1.1: 0.020 BrAC
Test 1.2: 0.040 BrAC
Test 1.3: 0.080 BrAC
Test 1.4: 0.160 BrAC
Test 2. Ambient Temperature. Use a temperature chamber controllable
to [deg]C. Soak the CU at the specified temperature for 1
hour, being careful to prevent drafts on the device, then test at that
temperature.
Test 2.1: 10 [deg]C
Test 2.2: 30 [deg]C
Test 3. Input Power. If the CU is powered by nominal voltages of
120 volts AC of 12 volts DC, condition the device for one half hour at
the appropriate input voltage specified below, then test at that
voltage. Monitor the input power with a voltmeter accurate to 2% full scale in the range used and re-adjust the voltage, if
necessary. If the voltage is Ac, conduct test 3.1 and 3.2.
If the voltage is DC, conduct tests 3.3 and 3.4.
Test 3.1: 108 Volts/AC
Test 3.2: 123 Volts/AC
Test 3.3: 11 Volts/DC
Test 3.4: 15 Volts/DC
Test 4. Electrical Safety Inspection. Examine the CU for protection
of the operator from electrical shock. Examine for proper use of input
power fuses, and verify that there are no exposed male connectors at
high potential. Determine that overheating does not occur during
operation and that undue fire hazards do not exist.
3.1 Test Procedure (Original, wet-bath calibrating units)
Equipment and Supplies: Gas Chromatograph capable of complete
resolution of ethanol in test samples, with heated gas sampling valve.
Water bath thermostated at 34 [deg]C 0.1 [deg]C. Glass
Reference Sample Bottles (300 ml capacity or greater) with Stopper and
Inlet and Outlet Air Hoses (see Figure 1). Hoses should be about 1/8''
OD Teflon tubing. Reference Ethanol Solutions prepared using Class A
glassware and American Chemical Society reagent grade ethanol or USP
grade ethanol. The purity of the ethanol used shall be compared with
the National Institute of standards and Technology (NIST) Standard
Reference Material for ethanol. Use the value of Harger, et al., for
the partition ratio for concentration of ethanol in headspace to
concentration in solution at 34 [deg]C, Ka/w = 0.000393 \4\ to prepare
two solutions which, when thermostated at 34 [deg]C, produce headspace
ethanol vapor concentrations that bracket the test BrAC by no more than
20%. Small Air Pump for bubbling air through reference
solutions (see Figure 1).
---------------------------------------------------------------------------
\4\ RN Harger, BB Raney, EG Bridwell, MF Kitchel J. Biol. Chem.
183, 197-213 (1950). Additional data from Harger in a private
communication (see 49 FR 48869).
---------------------------------------------------------------------------
Step 1. Prepare the Gas Chromatograph for measurement of vapor
samples. Adjust instrument temperatures, gas flows, detector, and
recording device for optimum response for ethanol. Prepare the CU for
use according to manufacturer's instructions.
Step 2. Fill two reference solution bottles to \3/4\ full with
above reference solutions. Insert stopper assemblies with bubble line
and alcohol vapor line in place and put bottles in the water bath with
water level up to the stopper. Connect air pump to bubble line. Connect
alcohol vapor line to gas chromatograph sampling valve inlet fitting.
Allow 1 hour for temperature equilibrium to be achieved.
[[Page 34745]]
Step 3. Turn on air pump which has been pre-set to pump air through
the reference solution bottle-gas chromatograph sampling assembly at a
rate just sufficient to thoroughly flush the system in 10 seconds.
After flushing is complete, allow the sample to relax to atmospheric
pressure, then inject the reference sample onto the gas chromatograph
column. In this way, obtain 5 chromatograms of one of the reference
solution headspace ethanol vapors.
Step 4. Thoroughly flush the sample loop with vapors from the CU
device, while avoiding over-pressurizing of the sampling system. To
prevent condensation of alcohol, warm the transfer line if necessary.
Allow the sample to relax to atmospheric pressure, then inject the
sample onto the column. In this way, obtain 10 ethanol chromatograms
using the CU device.
Step 5. Repeat step 3 using the second reference solution.
Step 6. Calculations. Peak height to BrAC conversion factor. For
each ethanol peak obtained in Step 3 and Step 5, calculate a conversion
factor for ethanol concentration by dividing the equivalent BrAC of the
vapor sample by the peak height obtained for that sample. From the 10
samples, obtain the mean and the RSD of the conversion factors. If the
RSD obtained fails to meet the criteria for RSD in 3.0, perform
necessary troubleshooting and repeat the procedure from Step 1. Use the
mean of the conversion factors to calculate the BrAC for each of the 10
ethanol peaks obtained in Step 4. Calculate the mean, the RSD, and the
systematic error of the experimental BrACs.
[GRAPHIC] [TIFF OMITTED] TN25JN07.000
3.2 Test Procedures (for dry gas calibrating units). Alternate Test
Method using National Institute of Standards and Technology Reference
Gas Mixtures (NISTRGMs) in place of wet bath reference samples
The following alternate method for the evaluation of dry gaseous
ethanol calibration devices is presented.
Additional required material: For the alternate method for
evaluation of dry gaseous ethanol calibration devices, the following
will be required: Four cylinders of National Institute of Standards and
Technology ethanol-in-inert gas Technical Reference Gas Mixtures
(NISTRGMs) which span the BrAC range 0.01 to 0.16.
Alternate procedure for evaluation of dry gaseous ethanol
calibration devices. This procedure substitutes the use of NISTRGMs in
place of the wet bath reference samples when evaluating dry gas CUs.
Step A1. Connect one of the NISTRGM cylinders to the inlet of the
gas chromatograph sampling valve and pass reference gas through the
sampling system at a rate just sufficient to thoroughly flush the
system in about 10 seconds. Allow the sample to relax to atmospheric
pressure, then inject the sample onto the column. In this way, obtain 5
chromatograms of the reference gas.
Step A2. Repeat Step A1 for each of the four NISTRGM reference gas
mixtures.
Step A3. Calculate the RSD of the concentration divided by peak
height data obtained in Step A1 and Step A2. If the calculated RSD
meets the criteria of 3.0, calculate the slope and intercept of the
least squares fit calibration line for conversion of peak height to
BrAC. Using the average peak height of each NISTRGM and the slope and
intercept data, calculate the concentration of each NISTRGM. If the
resulting concentrations are within the stated accuracy of the NISTRGM,
proceed to Step A4.
Step A4. Connect the calibrating device to the inlet of the gas
[[Page 34746]]
chromatograph sampling system and allow the calibrating device gas to
flow at a rate just sufficient to thoroughly flush the sampling system
in about 10 seconds. Allow the sample to relax to atmospheric pressure,
then inject the sample onto the column. In this way, obtain 10
chromatograms of the calibrating device gas.
Step A5. Calculations. Using the peak height data obtained in Step
A4 and intercept and slope data obtained in Step A3, calculate the BrAC
for each of the 10 peak heights. Calculate the mean, RSD, and
systematic error of the calculated BrACs.
3.3 Test Procedures (for dry gas or wet bath calibrating units)
This alternate procedure uses infra-red spectroscopy that is
suitable for evaluating ethanol vapor samples from either wet-bath CUs
or from dry-gas CUs.
3.3.1 General. This method uses the Beer-Lambert Law of absorption
of radiant energy by fluids.
I = Io x e-abc
Where:
Io is the energy entering the sample chamber of a
spectrophotometer containing the sample to be analyzed.
I is the energy transmitted from the sample chamber.
a is the absorptivity of the sample.
b is the radiation path length of the sample chamber.
c is the concentration of the sample in the sample chamber.
A convenient form of the Beer-Lambert law is
Ln(Io/I) = abc
where the term Ln(Io/I), the logarithm of the ratio of
incident to transmitted energy, is called the absorbance of the sample.
In the procedure described below, the terms a and b are treated as a
single quantity, ab, and the term c is BrAC.
3.3.2 Test Procedure.
Equipment and Supplies. Infra-red Spectrophotometer with sample
chamber that can be heated to above 40 [deg]C. A non-dispersive
instrument with appropriate band pass filters and configured to measure
breath alcohol samples, such as an infra-red evidential breath tester
listed on the NHTSA Conforming Products List for evidential breath
testers may be used. The detector voltage of the instrument must be
accessible for measurement. The sampling hoses of the device may be
altered for more convenient processing of test samples. Water bath
thermostated at 34 [deg]C 0.1 [deg]C. Glass Reference
Sample Bottles (300 ml capacity or greater) and Stoppers with Bubble
and Alcohol Vapor lines (see Figure 2). Reference Ethanol Solutions
prepared using Class A glassware and American Chemical Society reagent
grade ethanol or USP grade ethanol. The purity of the ethanol used
shall be compared with the National Institute of Standards and
Technology (NIST) Standard Reference Material for ethanol. Use the
value of Harger, et al., for the partition ratio for concentration of
ethanol in headspace to concentration in solution at 34 [deg]C,
Ka/w = 0.000393\2\ to prepare two aqueous alcohol solutions
which bracket the test BrAC by no more than 20%. A
cylinder of inert Flushing Gas, which is optically clear in the
absorption region used for measurement. This gas will be used to flush
the sample chamber of the spectrophotometer and to deliver reference
headspace vapors and wet bath sample vapors into the sample chamber.
Pressure regulating valve with Teflon delivery hose for controlling
flow and delivery of flushing gas.
Step B1. Prepare the spectrometer for measurement of vapor samples.
Prepare the CU for use according to manufacturer's instructions.
Step B2. Fill a reference sample bottles to \3/4\ full with water
and two reference sample bottles to \3/4\ full with the above reference
solutions. Insert stopper assemblies ensuring that the end of the
bubble line reaches to at least 4 inches below the surface of the
solution, then place the bottles in the water bath with water level up
to the stopper. Allow 1 hour for temperature equilibrium to be
achieved.
Step B3. Connect the bubble line of the sample bottle containing
water only to the flushing gas valve and the vapor line to the
spectrophotometer inlet and flush the sample chamber with water vapor
and obtain the detector voltage reading. Then flush the detector
chamber with flushing gas only and obtain the detector reading. Repeat
2 times to obtain 3 sets of readings. If the CU being evaluated is a
wet bath device, skip this step and proceed to Step B4.
Step B4. In the manner of Step B3, obtain 5 sets of detector
readings using one of the reference alcohol solution bottles.
Step B5. In the manner of Step B3, obtain 10 sets of detector
readings from the CU being evaluated. If the CU is a wet bath device,
use the flushing gas to fill the sample chamber, operating the device
according to manufacturer's instructions. If the CU device is dry gas
device, fill the sample chamber according to manufacturer's
instructions.
Step B6. Repeat Step B5 using the other reference alcohol solution
bottle.
Step B7. Repeat Step B3.
Step B8. Calculations. For each measurement pair, Io is
the detector voltage obtained for the flushing gas alone in the sample
chamber and I is the voltage obtained for the flushing gas with
reference sample or test sample in the sample chamber corrected for
water vapor absorption, i.e.; the detector voltage obtained for
headspace reference samples at 0.000 BrAC. Use the average of the 6
voltage readings obtained for the water samples for the correction for
water vapor absorption (I = Isample - Iwater). In
the case of wet bath device samples, there is no correction for water
vapor absorption. If the detector is biased, it will be the difference
between the bias voltage and the above voltage.
Calculate the absorbance for each of the 10 reference samples.
Divide each absorbance by the corresponding BrAC of the sample. Obtain
the mean (which is the factor ab), SD, and RSD for the 10 ratios. If
the RSD is more than 2%, troubleshoot the procedure and repeat.
Calculate the absorbance for each of the 10 CU test samples. Divide
each by the ab factor to obtain the BrAC for each of the 10 CU samples.
Obtain the mean, SD, RSD, and SE.
[[Page 34747]]
[GRAPHIC] [TIFF OMITTED] TN25JN07.001
Appendix--Conforming Products List of Calibrating Units for Breath
Alcohol Testers [Manufacturer and Calibrating Unit] \1\
---------------------------------------------------------------------------
\1\ Infra-red (IR) and fuel cell breath testers may be
calibrated with either wet bath or dry gas CUs. However, it is
inadvisable to use dry gas CUs when calibrating gas chromatograph
EBTs.
Conforming Products List of Calibrating Units for Breath Alcohol Testers
------------------------------------------------------------------------
Type of device
Manufacturers -----------------------
Dry gas Wet bath
------------------------------------------------------------------------
1. Airgas, Inc. (Formerly known as: Gateway
Airgas, AG Specialty Gas, or Acetylene Gas
Co.), St. Louis, MO
Ethanol Breath Alcohol Standard.... X ..........
103 parts per million (ppm)/108 X ..........
Liters (L).................................
270 ppm/30L........................ X ..........
2. Air Liquide CALGAZ, Cambridge, MD
115 ppm/34L........................ X ..........
115 ppm/105L....................... X ..........
230 ppm/34L........................ X ..........
230 ppm/105L....................... X ..........
260.5 ppm/58L...................... X ..........
260.5 ppm/537L..................... X ..........
260.5 ppm/15L...................... X ..........
3. CMI, Inc., Owensboro, KY
Toxitest II........................ .......... X
4. Davtech Analytical Services, Canada
CALWAVE dT-100..................... .......... X
5. Guth Laboratories, Inc., Harrisburg, PA
Model 34C Simulator (variations: .......... X
Model 34C Cal DOJ, 34-C-FM, and 34C-NPAS)..
Model 3412......................... .......... X
Model 10-4 and 10-4D............... .......... X
Model 10-4D Revision A............. .......... X
Model 1214......................... .......... X
Model 2100 (formerly Model 210021). .......... X
Model 2100 Revision A.............. .......... X
590................................ .......... X
6. Intoximeters, Inc., St. Louis, MO
Alco Breath Alcohol Standards*..... X ..........
7. Lion Laboratories, Cardiff, Wales, UK (a
subsidiary of CMI, Inc.)
AlcoCal Breath Alcohol Standard.... X ..........
8. Liquid Technology Corp., Orlando, FL
Ethanol-in-Nitrogen................ X ..........
9. Luckey Laboratories, Inc., San Bernardino, CA
Simulator*......................... .......... X
[[Page 34748]]
10. National Draeger, Inc., Durango, CO
Mark II-A.......................... .......... X
Alcotest CU 34..................... .......... X
11. PLD of Florida, Inc., Rockledge, FL
BA 500............................. .......... X
12. Protection Devices, Inc., U.S. Alcohol
Testing, Inc., Rancho Cucamonga, CA
LS34 Model 6100*................... .......... X
13. RepCo Marketing, Inc., Raleigh, NC
AS-1............................... .......... X
Model 3402C........................ .......... X
Model 3402C-2K..................... .......... X
14. Scott Specialty Gases, Inc., Plumsteadville,
PA
Model EBSTM Gaseous Ethanol Breath X ..........
Standard...................................
Scotty 28 0.040 BAC/28L............ X ..........
Scotty 28 0.045 BAC/28L............ X ..........
Scotty 28 0.080 BAC/28L............ X ..........
Scotty 28 0.100 BAC/28L............ X ..........
Scotty 28 0.105 BAC/28L............ X ..........
15. Smith & Wesson Electronic Co., Springfield,
MA
Mark II-A Simulator*............... .......... X
16. Systems Innovation, Inc., Hallstead, PA
True-Test MD 901*.................. .......... X
17. U.S. Alcohol Testing, Rancho Cucamonga, CA
Alco-Simulator 2000*............... .......... X
Alco-Simulator 61000............... .......... X
------------------------------------------------------------------------
*Six instruments marked with an asterisk (*) meet the Model
Specifications in 49 FR 48864 (December 14, 1984), i.e. instruments
tested at 0.050, 0.100, and 0.150). Instruments not marked with an
asterisk meet the model specifications detailed in this notice, and
were tested at 0.020, 0.040, 0.080, and 0.160 BrAC.
Authority: 23 U.S.C. 402; delegations of authority at 49 CFR
1.50 and 501.
Issued on: June 25, 2007.
Marilena Amoni,
Associate Administrator for the Office of Research and Program
Development.
[FR Doc. 07-3060 Filed 6-22-07; 8:45 am]
BILLING CODE 4910-59-M
