Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 440 - Standards of performance for new stationary sources
Subchapter II - Standards of Performance
Section NR 440.62 - Equipment leaks of VOC in the synthetic organic chemicals manufacturing industry
Universal Citation: WI Admin Code ยง NR 440.62
Current through August 26, 2024
(1) APPLICABILITY AND DESIGNATION OF AFFECTED FACILITY.
(a)
1. The provisions of this section apply to
affected facilities in the synthetic organic chemicals manufacturing
industry.
2. The group of all
equipment (defined in sub. (2)) within a process unit is an affected
facility.
(b) Any
affected facility under par. (a) that commences construction or modification
after January 5, 1981, shall be subject to the requirements of this section.
(c) Addition or replacement of
equipment for the purpose of process improvement which is accomplished without
a capital expenditure is not by itself considered a modification under this
section.
(d)
1. If an owner or operator applies for one of
the exemptions in this paragraph the owner or operator shall maintain records
as required in sub. (7) (i).
2. Any
affected facility that has the design capacity to produce less than 1,000 Mg/yr
(1,102 ton/yr) is exempt from sub. (3).
3. If an affected facility produces heavy
liquid chemicals only from heavy liquid feed or raw materials it is exempt from
sub. (3).
4. Any affected facility
that produces beverage alcohol is exempt from sub. (3).
5. Any affected facility that has no
equipment in VOC service is exempt from sub. (3).
(e)
1.
Owners or operators may choose to comply with 40 CFR part 65, subpart F, as in
effect on December 14, 2000, to satisfy the requirements of subs. (3) to (8)
for an affected facility. When choosing to comply with 40 CFR part 65, subpart
F, the requirements of subs. (6) (d) to (f) and (7) (i) and (j) shall apply.
Other provisions applying to owners or operators who choose to comply with 40
CFR part 65 are provided in
40
CFR 65.1.
2. Owners or operators who choose to comply
with 40 CFR part 65, subpart F, as in effect on December 14, 2000, shall also
comply with ss.
NR 440.01, 440.02, 440.05, 440.06, 440.07(1) (a) and (d), 440.14 and 440.15 for that equipment. Any section
or subsection from ss.
NR 440.01
to 440.19 not specified in this
subdivision does not apply to owners or operators of equipment subject to this
section complying with 40 CFR part 65, subpart F, except that provisions
required to be met prior to implementing 40 CFR part 65 still apply. Owners and
operators who choose to comply with 40 CFR part 65, subpart F, shall comply
with 40 CFR part 65, subpart A, as in effect on December 14, 2000.
(2) DEFINITIONS. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02.
(a) "Capital
expenditure" means, in addition to the definition in s.
NR 440.02(6), an expenditure for a
physical or operational change to an existing facility that:
1. Exceeds P, the product of the facility's
replacement cost, R, and an adjusted annual asset guideline repair allowance,
A, as reflected by the following equation:
P = R A,
where
a. The
adjusted annual asset guideline repair allowance, A, is the product of the
percent of the replacement cost, Y, and the applicable basic annual asset
guideline repair allowance, B, divided by 100 as reflected by the following
equation:
A = Y (B /100);
b. The percent Y is determined from the
following equation:
Y = 1.0 - 0.575 log X,
where X is 1982 minus the year of construction; and
c. The applicable basic
annual asset guideline repair allowance, B, is selected from the following
table consistent with the applicable section:
Table for Determining Applicable Value of B
| Section applicable to facility | Value of B to be used in equation | |
| 1) | This section ...................... | 12.5 |
| 2) | NR 440.647..................... | 12.5 |
| 3) | NR 440.66...................... | 7.0 |
| 4) | NR 440.682..................... | 4.5 |
(b) "Closed vent system" means a system that
is not open to the atmosphere and that is composed of hard-piping, ductwork,
connections and, if necessary, flow inducing devices that transport gas or
vapor from a piece or pieces of equipment to a control device or back to a
process.
(c) "Connector" means
flanged, screwed, welded, or other joined fittings used to connect two pipe
lines or a pipe line and a piece of process equipment.
(d) "Control device" means an enclosed
combustion device, vapor recovery system, or flare.
(e) "Distance piece" means an open or
enclosed casing through which the piston rod travels, separating the compressor
cylinder from the crankcase.
(f)
"Double block and bleed system" means two blocks valves connected in series
with a bleed valve or line that can vent the line between the two block valves.
(fm) "Ductwork" means a conveyance
system such as those commonly used for heating and ventilation systems. It is
often made of sheet metal and often has sections connected by screws or
crimping. Hard-piping is not ductwork.
(g) "Equipment" means each pump, compressor,
pressure relief device, sampling connection system, open-ended valve or line,
valve and flange or other connection in VOC service and any devices or systems
required by this section.
(h)
"First attempt at repair" means to take rapid action for the purpose of
stopping or reducing leakage of organic material to atmosphere using best
practices.
(he) "Fuel gas" means
gases that are combusted to derive useful work or heat.
(hm) "Fuel gas system" means the offsite and
onsite piping and flow and pressure control system that gathers gaseous streams
generated by onsite operations, may blend them with other sources of gas, and
transports the gaseous stream for use as fuel gas in combustion devices or
in-process combustion equipment, such as furnaces and gas turbines, either
singly or in combination.
(hs)
"Hard-piping" means pipe or tubing that is manufactured and properly installed
using good engineering judgment and standards such as ASME B31.3, Process
Piping (available from the American Society of Mechanical Engineers, PO Box
2900, Fairfield, NJ 07007-2900).
(i) "In gas/vapor service" means that the
piece of equipment contains process fluid that is in the gaseous state at
operating conditions.
(j) "In heavy
liquid service" means that the piece of equipment is not in gas vapor service
or in light liquid service.
(k) "In
light liquid service" means that the piece of equipment contains a liquid that
meets the conditions specified in sub. (6) (e).
(ke) "In-situ sampling systems" means
nonextractive samplers or in-line samplers.
(km) "In-vacuum service" means that equipment
is operating at an internal pressure which is at least 5 kilopascals (kPa) (0.7
psia) below ambient pressure.
(ks)
"In VOC service" means that the piece of equipment contains or contacts a
process fluid that is at least 10% VOC by weight. (The provisions of sub. (6)
(d) specify how to determine that a piece of equipment is not in VOC service.)
(L) "Liquids dripping" means any
visible leakage from the seal including spraying, misting, clouding and ice
formation.
(m) "Open-ended valve or
line" means any valve, except safety relief valves, having one side of the
valve seat in contact with process fluid and one side open to the atmosphere,
either directly or through open piping.
(n) "Pressure release" means the emission of
materials resulting from system pressure being greater than set pressure of the
pressure relief device.
(o)
"Process improvement" means routine changes made for safety and occupational
health requirements, for energy savings, for better utility, for ease of
maintenance and operation, for correction of design deficiencies, for
bottleneck removal, for changing product requirements, or for environmental
control.
(p) "Process unit" means
components assembled to produce, as intermediate or final products, one or more
of the chemicals listed in Table A of sub. (10). A process unit can operate
independently if supplied with sufficient feed or raw materials and sufficient
storage facilities for the product.
(q) "Process unit shutdown" means a work
practice or operational procedure that stops production from a process unit or
part of a process unit. An unscheduled work practice or operational procedure
that stops production from a process unit or part of a process unit for less
than 24 hours is not a process unit shutdown. The use of spare equipment and
technically feasible bypassing of equipment without stopping production are not
process unit shutdowns.
(r)
"Quarter" means a 3-month period; the first quarter concludes on the last full
month during the 180 days following initial startup.
(s) "Repaired" means that equipment is
adjusted, or otherwise altered, in order to eliminate a leak as indicated by
one of the following: an instrument reading of 10,000 ppm or greater,
indication of liquids dripping, or indication by a sensor that a seal or
barrier fluid system has failed.
(t) "Replacement cost" means the capital
needed to purchase all the depreciable components in a facility.
(tm) "Sampling connection system" means an
assembly of equipment within a process unit used during periods of
representative operation to take samples of the process fluid. Equipment used
to take nonroutine grab samples is not considered a sampling connection
system.
(u) "Sensor" means a device
that measures a physical quantity such as temperature, pressure, flow rate, pH,
or liquid level.
(w) "Synthetic
organic chemicals manufacturing industry" means the industry that produces, as
intermediates or final products, one or more of the chemicals listed in Table A
of sub. (10).
(y) "Volatile organic
compounds" or "VOC" means, for the purpose of this section, any reactive
organic compounds as defined in s.
NR 440.02(35).
(3) STANDARDS.
(a)
General.
1. Each owner or operator subject to the
provisions of this section shall demonstrate compliance with the requirements
of pars. (a) to (j) or sub.(1)(e) for all equipment within 180 days of initial
startup .
2. Compliance with pars.
(a) to (j) will be determined by review of records and reports, review of
performance test results and inspection using the methods and procedures
specified in sub. (6).
3. An owner
or operator may apply to the administrator for a determination of equivalence
of a means of emission limitation to the requirements of par. (b), (c), (e),
(f), (g), (h) or (j) under
40 CFR
60.484, as in effect on July 1, 1994. If the
administrator makes a determination that a means of emission limitation is at
least equivalent, the owner or operator shall notify the department of that
determination and comply with its requirements rather than the requirements of
par. (b), (c), (e), (f), (g), (h) or (j).
4. Equipment that is in vacuum service is
excluded from the requirements of pars. (b) to (j) if it is identified as
required in sub. (7) (e) 5.
(b) Pumps in light liquid service.
1.
a. Each
pump in light liquid service shall be monitored monthly to detect leaks by the
methods specified in sub. (6) (b), except as provided in par. (a) 3. and subds.
4., 5. and 6.
b. Each pump in
light liquid service shall be checked by visual inspection each calendar week
for indications of liquids dripping from the pump seal.
2.
a. If an
instrument reading of 10,000 ppm or greater is measured a leak is
detected.
b. If there are
indications of liquids dripping from the pump seal a leak is detected.
3.
a. When a leak is detected it shall be
repaired as soon as practicable but not later than 15 calendar days after it is
detected, except as provided in par. (i).
b. A first attempt at repair shall be made no
later than 5 calendar days after each leak is detected.
4. Each pump equipped with a dual mechanical
seal system that includes a barrier fluid system is exempt from the
requirements of subd. 1. provided the following requirements are met:
a. Each dual mechanical seal system is one of
the following:
1) Operated with the barrier
fluid at a pressure that is at all times greater than the pump stuffing box
pressure.
2) Equipment with a
barrier fluid degassing reservoir that is routed to a process or fuel gas
system or connected by a closed vent system to a control device that complies
with the requirements of par. (j).
3) Equipped with a system that purges the
barrier fluid into a process stream with zero VOC emissions to the atmosphere.
b. The barrier fluid
system is in heavy liquid service or is not in VOC service.
c. Each barrier fluid system is equipped with
a sensor that will detect failure of the seal system, the barrier fluid system,
or both.
d. Each pump is checked by
visual inspection each calendar week for indications of liquids dripping from
the pump seals.
e.
1) Each sensor as described in subd. 4. c. is
checked daily or is equipped with an audible alarm, and
2) The owner or operator determines, based on
design considerations and operating experience, a criterion that indicates
failure of the seal system, the barrier fluid system, or both.
f.
1) If there are indications of liquids
dripping from the pump seal or the sensor indicates failure of the seal system,
the barrier fluid system, or both based on the criterion determined in subd. 4.
e. 2) a leak is detected.
2) When a
leak is detected it shall be repaired as soon as practicable but no later than
15 calendar days after it is detected, except as provided in par. (i).
3) A first attempt at repair shall
be made no later than 5 calendar days after each leak is detected.
5. Any pump that is
designated as described in sub. (7) (e) 1. and 2. for no detectable emission,
as indicated by an instrument reading of less than 500 ppm above background, is
exempt from the requirements of subds. 1., 3. and 4. if the pump:
a. Has no externally actuated shaft
penetrating the pump housing,
b. Is
demonstrated to be operating with no detectable emissions as indicated by an
instrument reading of less than 500 ppm above ground as measured by the methods
specified in sub. (6) (c), and
c.
Is tested for compliance with sub. (6) (e) 2. initially upon designation,
annually and at other times requested by the department.
6. If any pump is equipped with a closed vent
system capable of capturing and transporting any leakage from the seal or seals
to a process or to a fuel gas system or to a control device that complies with
the requirements of par. (j), it is exempt from the requirements of subds. 1.
to 5.
7. Any pump that is
designated, as described in sub. (7) (f) 1., as an unsafe-to-monitor pump is
exempt from the monitoring and inspection requirements of subds. 1. and 4. d.
to f. if the owner or operator of the pump does all of the following:
a. Demonstrates that the pump is
unsafe-to-monitor because monitoring personnel would be exposed to an immediate
danger as a consequence of complying with subd. 1.
b. Has a written plan that requires
monitoring of the pump as frequently as practicable during safe-to-monitor
times but not more frequently than the periodic monitoring schedule otherwise
applicable, and repairs the equipment according to the procedures in subd. 3.
if a leak is detected.
8. Any pump that is located within the
boundary of an unmanned plant site is exempt from the weekly visual inspection
requirement of subds. 1. b. and 4. d. and the daily requirements of subd. 4. e.
provided that each pump is visually inspected as often as practicable and at
least monthly.
(c)
Compressors.
1. Each compressor shall be
equipped with a seal system that includes a barrier fluid system that prevents
leakage of VOC to the atmosphere, except as provided in par. (a) 3. and subds.
8. and 9.
2. Each compressor seal
system as required in subd. 1. shall be one of the following:
a. Operated with a barrier fluid at a
pressure that is greater than the compressor stuffing box pressure.
b. Equipped with a barrier fluid system
degassing reservoir that is routed to a process or fuel gas system or connected
by a closed vent system to a control device that complies with the requirements
of par. (j).
c. Equipped with a
system that purges the barrier fluid into a process stream with zero VOC
emissions to the atmosphere.
3. The barrier fluid system shall be in heavy
liquid service or may not be in VOC service.
4. Each barrier fluid system as described in
subd. 1. shall be equipped with a sensor that will detect failure of the seal
system, barrier fluid system, or both.
5.
a. Each
sensor as required in subd. 4. shall be checked daily or shall be equipped with
an audible alarm.
b. The owner or
operator shall determine, based on design considerations and operating
experience, a criterion that indicates failure of the seal system, the barrier
fluid system, or both.
6.
If the sensor indicates failure of the seal system, the barrier system, or both
based on the criterion determined under subd. 5. b. a leak is detected.
7.
a. When a leak is detected it shall be
repaired as soon as practicable, but not later than 15 calendar days after it
is detected, except as provided in par. (i).
b. A first attempt at repair shall be made no
later than 5 calendar days after each leak is detected.
8. A compressor is exempt from the
requirements of subds. 1. and 2. if it is equipped with a closed vent system to
capture and transport leakage from the compressor drive shaft back to a process
or fuel gas system or to a control device that complies with the requirements
of par. (j), except as provided in subd. 9.
9. Any compressor that is designated as
described in sub. (7) (e) 1. and 2. for no detectable emissions, as indicated
by an instrument reading of less than 500 ppm above background, is exempt from
the requirements of subds. 1. to 8. if the compressor:
a. Is demonstrated to be operating with no
detectable emissions as indicated by an instrument reading of less than 500 ppm
above background, as measured by the methods specified in sub. (6) (c);
and
b. Is tested for compliance
with subd. 9. a. initially upon designation, annually and at other times
requested by the department.
10. Any existing reciprocating compressor in
a process unit which becomes an affected facility under provisions of s.
NR 440.14 or 440.15 is exempt from subds. 1., 2.,
3., 4., 5. and 8. provided the owner or operator demonstrates that recasting
the distance piece or replacing the compressor are the only options available
to bring the compressor into compliance with the provisions of subds. 1., 2.,
3., 4., 5. and 8.
(d)
Pressure relief devices in gas/vapor service.
1. Except during pressure releases, each
pressure relief device in gas/vapor service shall be operated with no
detectable emissions as indicated by an instrument reading of less than 500 ppm
above background, as determined by the methods specified in sub. (6) (c).
2.
a. After each pressure release the pressure
relief device shall be returned to a condition of no detectable emissions, as
indicated by an instrument reading of less than 500 ppm above background, as
soon as practicable but no later than 5 calendar days after the pressure
release, as provided in par. (i).
b. No later than 5 calendar days after the
pressure release the pressure relief device shall be monitored to confirm the
conditions of no detectable emissions, as indicated by an instrument reading of
less than 500 ppm above background, by the methods specified in sub. (6)
(c).
3. Any pressure
relief device that is routed to a process or fuel gas system or equipped with a
closed vent system capable of capturing and transporting leakage through the
pressure relief device to a control device as described in par. (j) is exempted
from the requirements of subds. 1. and 2.
4.
a. Any
pressure relief device that is equipped with a rupture disk upstream of the
pressure relief device is exempt from the requirements of subds. 1. and 2.,
provided the owner or operator complies with the requirements in subd. 4. b.
b. After each pressure release, a
new rupture disk shall be installed upstream of the pressure relief device as
soon as practicable, but no later than 5 calendar days after each pressure
release, except as provided in par. (i).
(e) Sampling connection systems.
1. Each sampling connection system shall be
equipped with a closed purge, closed loop or closed vent system, except as
provided in par. (a) 3. Gases displaced during filling of the sample container
are not required to be collected or captured.
2. Each closed purge, closed loop or closed
vent system as required in subd. 1. shall do one of the following:
a. Return the purged process fluid directly
to the process line.
b. Collect and
recycle the purged process fluid to the process line.
c. Be designed and operated to capture and
transport all the purged process fluid to a control device that complies with
the requirements of par. (j).
d.
Collect, store and transport the purged process fluid to any of the following
systems or facilities:
40 CFR part 63, subpart G, applicable to group 1 wastewater streams.
2) A treatment, storage or
disposal facility subject to regulation under 40 CFR part 262, 264, 265 or
266.
3) A facility permitted,
licensed or registered by a state to manage municipal or industrial solid
waste, if the process fluids are not hazardous waste as defined in 40 CFR part
261.
3. In
situ-sampling systems and sampling systems without purges are exempt from
subds. 1. and 2.
(f)
Open-ended valves or lines.
1.
a. Each
open-ended valve or line shall be equipped with a cap, blind flange, plug, or a
second valve, except as provided in par. (a) 3.
b. The cap, blind flange, plug, or second
valve shall seal the open end at all times except during operations requiring
process fluid flow through the open-ended valve or line.
2. Each open-ended valve or line equipped
with a second valve shall be operated with a second valve shall be operated in
a manner such that the valve on the process fluid end is closed before the
second valve is closed.
3. When a
double block-and-bleed system is being used, the bleed valve or line may remain
open during operations that require venting the line between the block valves
but shall comply with subd. 1. at all other times.
4. Open-ended valves or lines in an emergency
shutdown system which are designed to open automatically in the event of a
process upset are exempt from the requirements of subds. 1. to 3.
5. Open-ended valves or lines containing
materials which would autocatalytically polymerize or would present an
explosion, serious overpressure or other safety hazard if capped or equipped
with a double block and bleed system as specified in subds. 1. to 3. are exempt
from the requirements of subds. 1. to 3.
(g)
Valves in gas/vapor service and
in light liquid service.
1. Each
valve shall be monitored monthly to detect leaks by the methods specified in
sub. (6) (b) and shall comply with subds. 2. to 5., except as provided in
subds. 6., 7. and 8., subs. (4) (a) and (b) and par. (a) 3.
2. In an instrument reading of 10,000 ppm or
greater is measured a leak is detected.
3.
a. Any
valve for which a leak is not detected for 2 successive months may be monitored
the first month of every quarter, beginning with the next quarter, until a leak
is detected.
b. If a leak is
detected the valve shall be monitored monthly until a leak is not detected for
2 successive months.
4.
a. When a leak is detected it shall be
repaired as soon as practicable, but no later than 15 calendar days after the
leak is detected, except as provided in par. (i).
b. A first attempt at repair shall be made no
later than 5 calendar days after each leak is detected.
5. First attempts at repair include, but are
not limited to, the following best practices where practicable:
a. Tightening of bonnet bolts;
b. Replacement of bonnet bolts;
c. Tightening of packing gland
nuts;
d. Injection of lubricant
into lubricated packing.
6. Any valve that is designated as described
in sub. (7) (e) 2. for no detectable emissions, as indicated by an instrument
reading of less than 500 ppm above background, is exempt from the requirements
of subd. 1. if the valve:
a. Has no external
actuating mechanism in contact with the process fluid;
b. Is operated with emission less than 500
ppm above background as determined by the method specified in sub. (6) (c),
and
c. Is tested for compliance
with subd. 6. b. initially upon designation, annually, and at other times
requested by the department.
7. Any valve that is designated as described
in sub. (7) (f) 2. as a difficult-to-monitor valve is exempt from the
requirements of subd. 1. if:
a. The owner or
operator of the valve demonstrates that the valve is unsafe to monitor because
monitoring personnel would be exposed to an immediate danger as a consequence
of complying with subd. 1., and
b.
The owner or operator of the valve adheres to a written plan that requires
monitoring of the valve as frequently as practicable during safe-to-monitor
times.
8. Any valve that
is designated as described in sub. (7) (f) 2. as a difficult-to-monitor valve,
is exempt from the requirements of subd. 1. if:
a. The owner or operator of the valve
demonstrates that the valve cannot be monitored without elevating the
monitoring personnel more than 2 meters above a support surface.
b. The process unit within which the valve is
located either becomes an affected facility through s.
NR 440.14 or 440.15, or the owner or operator
designates less than 3.0 % of the total number of valves as
difficult-to-monitor, and
c. The
owner or operator of the valve follows a written plan that requires monitoring
of the valve at least once per calendar year.
(h)
Pumps and valves in heavy liquid
service, pressure relief devices in light liquid or heavy liquid service and
connectors.
1. If evidence of a
potential leak is found by visual, audible, olfactory or any other detection
method at pumps and valves in heavy liquid service, pressure relief devices in
light liquid or heavy liquid service and connectors, the owner or operator
shall follow one of the following procedures:
a. Monitor the equipment within 5 days by the
method specified in sub. (6) (b) and comply with the requirements in subds. 2
to 4.
b. Eliminate the visual,
audible, olfactory or other indication of a potential leak.
2. If an instrument reading of
10,000 ppm or greater is measured a leak is detected.
3.
a. When a
leak is detected it shall be repaired as soon as practicable but not later than
15 calendar days after it is detected, except as provided in par.
(i).
b. The first attempt at repair
shall be made no later than 5 calendar days after each leak is detected.
4. First attempts at
repair include, but are not limited to, the best practices described under par.
(g) 5.
(i)
Delay
of repair.
1. Delay of repair of
equipment for which leaks have been detected shall be allowed if repair within
15 days is technically infeasible without a process unit shutdown. Repair of
this equipment shall occur before the end of the next process unit
shutdown.
2. Delay of repair of
equipment will be allowed for equipment which is isolated from the process and
which does not remain in VOC service.
3. Delay of repair for valves will be allowed
if:
a. The owner or operator demonstrates that
emissions of purged material resulting from immediate repair are greater than
the fugitive emissions likely to result from delay of repair, and
b. When repair procedures are effected, the
purged material is collected and destroyed or recovered in a control device
complying with par. (j).
4. Delay of repair for pumps will be allowed
if:
a. Repair requires the use of a dual
mechanical seal system that includes a barrier fluid system, and
b. Repair is completed as soon as practicable
but not later than 6 months after the leak was detected.
5. Delay of repair beyond a process unit
shutdown will be allowed for a valve if valve assembly replacement is necessary
during the process unit shutdown, valve assembly supplies have been depleted
and valve assembly supplies had been sufficiently stocked before the supplies
were depleted. Delay of repair beyond the next process unit shutdown will not
be allowed unless the next process unit shutdown occurs sooner than 6 months
after the first process unit shutdown.
(j)
Closed vent systems and control
devices.
1. Owners or operators of
closed vent systems and control devices used to comply with provisions of this
section shall comply with the provisions of this paragraph.
2. Vapor recovery systems (for example,
condensers and adsorbers) shall be designed and operated to recover the VOC
emissions vented to them with an efficiency of 95% or greater, or to an exit
concentration of 20 ppm by volume, whichever is less stringent.
3. Enclosed combustion devices shall be
designed and operated to reduce the VOC emissions vented to them with an
efficiency of 95% or greater, or to an exit concentration of 20 ppm by volume,
on a dry basis, corrected to 3% oxygen, whichever is less stringent, or to
provide a minimum residence time of 0.75 seconds at a minimum temperature of
816°C.
4. Flares used to comply
with this section shall comply with the requirements of s.
NR 440.18.
5.
Owners or operators of control devices used to comply with the provisions of
this section shall monitor these control devices to ensure that they are
operated and maintained in conformance with their designs.
6. Except as provided in subds. 8. to 10.,
each closed vent system shall be inspected according to the following
procedures and schedule:
a. If the vapor
collection system or closed vent system is constructed of hard-piping, the
owner or operator shall do the following:
1)
Conduct an initial inspection according to the procedures in sub. (6) (b).
2) Conduct annual inspections for
visible, audible or olfactory indications of leaks.
b. If the vapor collection system or closed
vent system is constructed of ductwork, the owner or operator shall conduct an
initial inspection and annual inspections according to the procedures in sub.
(6) (b).
7. Leaks, as
indicated by an instrument reading greater than 500 ppm by volume above
background or by visual inspections, shall be repaired according to the
following, except as provided in subd. 8:
a. A
first attempt at repair shall be made no later than 5 calendar days after the
leak is detected.
b. Repair shall
be completed no later than 15 calendar days after the leak is
detected.
8. Delay of
repair of a closed vent system for which leaks have been detected is allowed if
the repair is technically infeasible without a process unit shutdown or if the
owner or operator determines that emissions resulting from immediate repair
would be greater than the fugitive emissions likely to result from delay of
repair. Repair of the equipment shall be complete by the end of the next
process unit shutdown.
9. If a
vapor collection system or closed vent system is operated under a vacuum, it is
exempt from the inspection requirements of subd. 6. a. 1) and b.
10. Any parts of the closed vent system that
are designated, as described in subd. 11. a., as unsafe to inspect are exempt
from the inspection requirements of subd. 6. a. 1) and b. if they comply with
the following requirements:
a. The owner or
operator determines that the equipment is unsafe to inspect because inspecting
personnel would be exposed to an imminent or potential danger as a consequence
of complying with subd. 6. a. 1) or b.
b. The owner or operator has a written plan
that requires inspection of the equipment as frequently as practicable during
safe-to-inspect times.
11. Any parts of the closed vent system that
are designated, as described in subd. 12. b., as difficult to inspect are
exempt from the inspection requirements of subd. 6. a. 1) and b. if they comply
with the following:
a. The owner or operator
determines that the equipment cannot be inspected without elevating the
inspecting personnel more than 2 meters above a support surface.
b. The process unit within which the closed
vent system is located becomes an affected facility through
40
CFR 60.14 or
60.15, or the
owner or operator designates less than 3.0 % of the total number of closed vent
system equipment as difficult to inspect.
c. The owner or operator has a written plan
that requires inspection of the equipment at least once every 5
years.
12. The owner or
operator shall record the following information:
a. Identification of all parts of the closed
vent system that are designated as unsafe to inspect, an explanation of why the
equipment is unsafe to inspect and the plan for inspecting the
equipment.
b. Identification of all
parts of the closed vent system that are designated as difficult to inspect, an
explanation of why the equipment is difficult to inspect and the plan for
inspecting the equipment.
c. For
each inspection during which a leak is detected, a record of the information
specified in sub. (7) (c).
d. For
each inspection conducted in accordance with sub. (6) (b) during which no leaks
are detected, a record that the inspection was performed, the date of the
inspection and a statement that no leaks were detected.
e. For each inspection conducted in
accordance with subd. 6. a. 2) during which no leaks are detected, a record
that the inspection was performed, the date of the inspection and a statement
that no leaks were detected.
13. Closed vent systems and control devices
used to comply with provisions of this section shall be operated at all times
when emissions may be vented to them.
(4) ALTERNATIVE STANDARDS FOR VALVES.
(a)
Allowable percentage of valves
leaking.
1. An owner or operator may
elect to comply with an allowable percentage of valves leaking of equal to or
less than 2.0 %.
2. The following
requirements shall be met if an owner or operator wishes to comply with an
allowable percentage of valves leaking:
a. An
owner or operator shall notify the department that the owner or operator has
elected to comply with the allowable percentage of valves leaking before
implementing this alternative standard, as specified in sub. (8) (d).
b. A performance test as specified in subd.
3. shall be conducted initially upon designation, annually, and at other times
requested by the department.
c. If
a valve leak is detected it shall be repaired in accordance with sub. (3) (g)
4. and 5.
3. Performance
tests shall be conducted in the following manner:
a. All valves in gas/vapor and light liquid
service within the affected facility shall be monitored within 1 week by the
methods specified in sub. (6) (b).
b. If an instrument reading of 10,000 ppm or
greater is measured a leak is detected.
c. The leak percentage shall be determined by
dividing the number of valves for which leaks are detected by the number of
valves in gas/vapor and light liquid service within the affected
facility.
4. Owners and
operators who elect to comply with this alternative standard may not have an
affected facility with a leak percentage greater than 2.0 %.
(b)
Skip period leak
detection and repair.
1.
a. An owner or operator may elect to comply
with one of the alternative work practices specified in subd. 2. b. and
c.
b. An owner or operator shall
notify the department before implementing one of the alternative work
practices, as specified in sub. (8) (d).
2.
a. An
owner or operator shall comply initially with the requirements for valves in
gas/vapor service and valves in light liquid service, as described in sub. (3)
(g).
b. After 2 consecutive
quarterly leak detection periods with the percent of valves leaking equal to or
less than 2.0 an owner or operator may begin to skip 1 of the quarterly leak
detection periods for the valves in gas/vapor and light liquid
service.
c. After 5 consecutive
quarterly leak detection periods with the percent of valves leaking equal to or
less than 2.0 an owner or operator may begin to skip 3 of the quarterly leak
detection periods for the valves in gas/vapor and light liquid
service.
d. If the percent of
valves leaking is greater than 2.0 the owner or operator shall comply with the
requirements as described in sub. (3) (g) but can again elect to use this
subsection.
e. The percent of
valves leaking shall be determined by dividing the sum of valves found leaking
during current monitoring and valves for which repair has been delayed by the
total number of valves subject to the requirements of this paragraph.
f. An owner or operator shall keep a record
of the percent of valves found leaking during each leak detection period.
Note: Under 40 CFR 60.484, each owner or operator subject to the provisions of this section may apply to the administrator for determination of equivalence for any means of emission limitation that achieves a reduction in emissions of VOC at least equivalent to the reduction in emissions of VOC achieved by the controls required in this section. Manufacturers of equipment used to control equipment leaks of VOC may apply to the administrator for determination of equivalence for any equivalent means of emission limitation that achieves a reduction in emissions of VOC at least equivalent to the reduction in emissions of VOC achieved by the equipment, design and operational requirements of this section. The administrator will make an equivalence determination according to the provisions of 40 CFR 60.484(b), (c), (d) and (e).
(6) TEST METHODS AND PROCEDURES.
(a) In conducting the performance tests
required in s.
NR 440.08, the
owner or operator shall use as reference methods and procedures the test
methods in Appendix A of 40 CFR part 60, incorporated by reference in s.
NR 440.17, or other methods and procedures as specified
in this subsection, except as provided in s.
NR 440.08(2).
(b) The owner or operator shall determine
compliance with the standards in subs. (3) and (4) as follows:
1. Method 21 shall be used to determine the
presence of leaking sources. The instrument shall be calibrated before use each
day of its use by the procedures specified in Method 21. The following
calibration gases shall be used:
a. Zero air
(less than 10 ppm of hydrocarbon in air); and
b. A mixture of methane or n-hexane and air
at a concentration of about, but less than, 10,000 ppm methane or
n-hexane.
(c)
The owner or operator shall determine compliance with the no detectable
emission standards in sub. (3) (b) 5., (c) 9., (d), (g) 6. and (j) 5. as
follows:
1. The requirements of par. (b)
shall apply.
2. Method 21 shall be
used to determine the background level. All potential leak interfaces shall be
traversed as close to the interface as possible. The arithmetic difference
between the maximum concentration indicated by the instrument and the
background level is compared with 500 ppm for determining compliance.
(d) The owner or operator shall
test each piece of equipment unless he or she demonstrates that a process unit
is not in VOC service, that is, that the VOC content would never be reasonably
expected to exceed 10% by weight. For purposes of this demonstration, the
following methods and procedures shall be used:
1. Procedures that conform to the general
methods in ASTM E168-92, E169- 93 or E260-96, incorporated by reference in s.
NR 440.17(2) (a) 73., 74. and 75.,
respectively, shall be used to determine the percent VOC content in the process
fluid that is contained in or contacts a piece of equipment.
2. Organic compounds that are considered by
the department to have negligible photochemical reactivity may be excluded from
the total quantity of organic compounds in determining the VOC content of the
process fluid.
3. Engineering
judgment may be used to estimate the VOC content, if a piece of equipment has
not been shown previously to be in service. If the department disagrees with
the judgment, subds. 1. and 2. shall be used to resolve the disagreement.
(e) The owner or
operator shall demonstrate that an equipment is in light liquid service by
showing that all the following conditions apply:
1. The vapor pressure of one or more of the
components is greater than 0.3 kPa at 20°C (1.2 in H2O at 68°F).
Standard reference texts or ASTM D2879-97, incorporated by reference in s.
NR 440.17(2) (a) 35., shall be used to
determine the vapor pressures.
2.
The total concentration of the pure components having a vapor pressure greater
than 0.3 kPa at 20°C (1.2 in H2O at 68°F) is equal to or greater than
20% by weight.
3. The fluid is a
liquid at operating conditions.
(f) Samples used in conjunction with pars.
(d), (e) and (g) shall be representative of the process fluid that is contained
in or contacts the equipment or the gas being combusted in the flare.
(g) The owner or operator shall determine
compliance with the standards for flares as follows:
1. Methods 22 shall be used to determine
visible emissions.
2. A
thermocouple or any other equivalent device shall be used to monitor the
presence of a pilot flame in the flare.
3. The maximum permitted velocity for air
assisted flares shall be computed using the following equation:
where:
Vmax is the maximum permitted velocity, m/sec (ft/sec)
HT is the net heating value of the gas being combusted, MJ/scm (Btu/scf)
K1 is 8.706 m/sec for metric units and 28.56 ft/sec for English units
K2 is 0.7084 m4/(MJ-sec) for metric units and 0.087 ft4/(Btu-sec) for English units
4. The net heating value (HT) of the gas
being combusted in a flare shall be computed using the following equation:
where :
K is a conversion constant, 1.740 x 10-7 (g-mole) (MJ)/(ppm-scm-kcal) for metric units and 4.674 x 10-6 (g-mole) (Btu)/(ppm-scf-kcal) for English units.
Ci is the concentration of sample component "i", ppm
Hi is the net heat of combustion of sample component "i" at 25°C and 760 mm Hg (77°F and 14.7 psi), kcal/g-mole
5. Method 18 and ASTM D2504-88
(reapproved 1993), incorporated by reference in s.
NR 440.17(2) (a) 31., shall be used to
determine the concentration of sample component "i".
6. ASTM D2382-88 or D4809-95, incorporated by
reference in s.
NR 440.17(2) (a) 30. and 61., shall be
used to determine the net heat of combustion of component "i" if published
values are not available or cannot be calculated.
7. Method 2, 2A, 2C or 2D, as appropriate,
shall be used to determine the actual exit velocity of a flare. If needed, the
unobstructed (free) cross- sectional area of the flare tip shall be
used.
(7) RECORDKEEPING REQUIREMENTS.
(a)
1. Each owner or operator subject to the
provisions of this section shall comply with the recordkeeping requirements of
this subsection.
2. An owner or
operator of more than one affected facility subject to the provisions of this
section may comply with the recordkeeping requirements for these facilities in
one recordkeeping system if the system identifies each record by each
facility.
(b) When each
leak is detected as specified in subs. (3) (b), (c), (g), (h) and (4) (b) the
following requirements apply:
1. A weather
proof and readily visible identification, marked with the equipment
identification number, shall be attached to the leaking equipment.
2. The identification on a value may be
removed after it has been monitored for 2 successive months as specified in
sub. (3) (g) 3. and no leak has been detected during those 2 months.
3. The identification on equipment except on
valve may be removed after it has been repaired.
(c) When each leak is detected as specified
in subs. (3) (b), (c), (g), (h) and (4) (b) the following information shall be
recorded in a log and shall be kept for 2 years in a readily accessible
location:
1. The instrument and operator
identification numbers and the equipment identification number.
2. The date the leak was detected and the
dates each attempt to repair the leak.
3. Repair methods applied in each attempt to
repair the leak.
4. "Above 10,000"
if the maximum instrument reading measured by the methods specified in sub. (6)
(a) after each repair attempt is equal to or greater than 10,000 ppm.
5. "Repair delayed" and the reason for the
delay if a leak is not repaired within 15 calendar days after discovery of the
leak.
6. The signature of the owner
or operator (or designate) whose decision it was that repair could not be
affected without a process shutdown.
7. The expected date of successful repair of
the leak if a leak is not repaired within 15 days.
8. Dates of process unit shutdown that occur
while the equipment is unrepaired.
9. The date of successful repair of the
leak.
(d) The following
information pertaining to the design requirements for closed vent systems and
control devices described in sub. (3) (j) shall be recorded and kept in a
readily accessible location:
1. Detailed
schematics, design specifications and piping and instrumentation
diagrams.
2. The dates and
descriptions of any changes in the design specifications.
3. A description of the parameter or
parameters monitored as required in sub. (3) (j) 5., to ensure that control
devices are operated and maintained in conformance with their design and an
explanation of why that parameter (or parameters) was selected for the
monitoring.
4. Periods when the
closed vent systems and control devices required in sub. (3) (b), (c), (d) and
(e) are not operated as designed, including periods when a flare pilot light
does not have a flame.
5. Dates of
startups and shutdowns of the closed vent systems and control devices required
in sub. (3) (b), (c), (d) and (e).
(e) The following information pertaining to
all equipment subject to the requirements in sub. (3) (a) to (j) shall be
recorded in a log that is kept in a readily accessible location:
1. A list of identification numbers for
equipment subject to the requirements of this section.
2.
a. A
list of identification numbers for equipment that are designated for no
detectable emissions under the provisions of sub. (3) (b) 5., (c) 9. and (g)
6.
b. The designation of equipment
as subject to the requirements of sub. (3) (b) 5., (c) 9., or (g) 6. shall be
signed by the owner or operator.
3. A list of equipment identification numbers
for pressure relief devices required to comply with sub. (3) (d).
4.
a. The
dates of each compliance test as required in sub. (3) (b) 5., (c) 9., (d) and
(g) 6.
b. The background level
measured during each compliance test.
c. The maximum instrument reading measured at
the equipment during each compliance test.
5. A list of identification numbers for
equipment in vacuum service.
(f) The following information pertaining to
all valves subject to the requirements of sub. (3) (g) 7. and 8. and to all
pumps subject to requirements of sub. (3) (b) 7. shall be recorded in a log
that is kept in a readily accessible location:
1. A list of identification numbers for
valves and pumps that are designated as unsafe-to-monitor, an explanation for
each valve or pump stating why the valve or pump is unsafe-to-monitor and the
plan for monitoring each valve or pump.
2. A list of identification numbers for
valves that are designated as difficult-to-monitor, an explanation for each
valve stating why the valve is difficult-to-monitor and the schedule for
monitoring each valve.
(g) The following information shall be
recorded for valves complying with sub. (4) (b).
1. A schedule of monitoring.
2. The percent of valves found leaking during
each monitoring period.
(h) The following information shall be
recorded in a log that is kept in a readily accessible location.
1. Design criterion required in sub. (3) (b)
4. e. and (c) 5. b. and explanation of the design criterion; and
2. Any changes to this criterion and the
reasons for the changes.
(i) The following information shall be
recorded in a log that is kept in a readily accessible location for use in
determining exemptions as provided in sub. (1)(d):
1. An analysis demonstrating the design
capacity of the affected facility,
2. A statement listing the feed or raw
materials and products from the affected facilities and an analysis
demonstrating whether these chemicals are heavy liquids or beverage alcohol,
and
3. An analysis demonstrating
that equipment is not VOC service.
(j) Information and data used to demonstrate
that a piece of equipment is not in VOC service shall be recorded in a log that
is kept in a readily accessible location.
(k) The provisions of s.
NR 440.07(2) and
(4) do not apply to affected facilities
subject to this section.
(8) REPORTING REQUIREMENTS.
(a) Each owner or operator subject to the
provisions of this section shall submit semiannual reports to the department
beginning 6 months after the initial start up date.
(b) The initial semiannual report to the
department shall include the following information:
1. Process unit identification.
2. Number of valves subject to the
requirements of sub. (3) (g), excluding those valves designated for no
detectable emissions under the provisions of sub. (3) (g) 6.
3. Number of pumps subject to the
requirements of sub. (3) (b), excluding those pumps designated for no
detectable emissions under the provisions of sub. (3) (b) 5. and those pumps
complying with sub. (3) (b) 6.
4.
Number of compressors subject to the requirements of sub. (3) (c), excluding
those compressors designated for no detectable emissions under the provisions
of sub. (3) (c) 9. and those compressors complying with sub. (3) (c)
8.
(c) All semiannual
reports to the department shall include the following information summarized
from the information in sub. (7):
1. Process
unit identification.
2. For each
month during the semiannual reporting period.
a. Number of valves for which leaks were
detected as described in sub. (3) (g) 2. or (4) (b),
b. Number of valves for which leaks were not
repaired as required in sub. (3) (g) 4. a.,
c. Number of pumps for which leaks were
detected as described in sub. (3) (b) 2. and 4. f. 1),
d. Number of pumps for which leaks were not
repaired as required in sub. (3) (b) 3. a. and 4. f. 2),
e. Number of compressors for which leaks were
detected as described in sub. (3) (c) 6.,
f. Number of compressors for which leaks were
not repaired as required in sub. (3) (c) 7. a., and
g. The facts that explain each delay of
repair and, where appropriate, why a process unit shutdown was technically
infeasible.
3. Dates of
process unit shutdowns which occurred within the semiannual reporting
period.
4. Revisions to items
reported according to par. (b) if changes have occurred since the initial
report or subsequent revisions to the initial report.
(d) An owner or operator electing to comply
with the provisions of sub. (4) (a) or (b) shall notify the department of the
alternative standard selected 90 days before implementing either of the
provisions.
(e) An owner or
operator shall report the results of all performance tests in accordance with
s.
NR 440.08. The
provisions of s.
NR 440.08(4) do not apply to affected
facilities subject to the provisions of this section except that an owner or
operator must notify the department of the schedule for the initial performance
tests at least 30 days before the initial performance tests.
(9) RECONSTRUCTION. For the purpose of this section:
(a) The cost of the
following frequently replaced components of the facility may not be considered
in calculating either the"fixed capital cost of the new components" or the
"fixed capital costs that would be required to construct a comparable new
facility" under s.
NR 440.15: pump seals, nuts and bolts, rupture disks and
packings.
(b) Under s.
NR 440.15 the "fixed capital cost of new components"
includes the fixed capital cost of all depreciable components (except
components specified in par. (a) which are or will be replaced pursuant to all
continuous programs of component replacement which are commenced within any
2-year period following the applicability date for the appropriate section.
(See the "applicability and designation of affected facility" subsection of the
appropriate section.) For purposes of this paragraph "commenced" means that an
owner or operator has undertaken a continuous program of component replacement
or that an owner or operator has entered into a contractual obligation to
undertake a continuous program of component replacement or that an owner or
operator has entered into a contractual obligation to undertake and complete,
within a reasonable time, a continuous program of component replacement.
(10) LIST OF CHEMICALS PRODUCED BY AFFECTED FACILITIES.
(a) The
chemicals listed in Table A are produced, as intermediates or final products,
by process units covered under this section. The applicability date for process
units producing one or more of these chemicals is January 5, 1981.
Table A
| CAS No.a | Chemical | |
| 1. | 105-57-7 | Acetal |
| 2. | 75-07-0 | Acetaldehyde |
| 3. | 107-89-1 | Acetaldol |
| 4. | 60-35-5 | Acetamide |
| 5. | 103-84-4 | Acetanilide |
| 6. | 64-19-7 | Acetic acid |
| 7. | 108-24-7 | Acetic anhydride |
| 8. | 67-64-1 | Acetone |
| 9. | 75-86-5 | Acetone cyanohydrin |
| 10. | 75-05-8 | Acetonitrile |
| 11. | 98-86-2 | Acetophenone |
| 12. | 75-36-5 | Acetyl chloride |
| 13. | 74-86-2 | Acetylene |
| 14. | 107-02-8 | Acrolein |
| 15. | 79-06-1 | Acrylamide |
| 16. | 79-10-7 | Acrylic acid |
| 17. | 107-13-1 | Acrylonitrile |
| 18. | 124-04-9 | Adipic acid |
| 19. | 111-69-3 | Adiponitrile |
| 20. | (b) | Alkyl naphthalenes |
| 21. | 107-18-6 | Allyl alcohol |
| 22. | 107-05-1 | Allyl chloride |
| 23. | 1321-11-5 | Aminobenzoic acid |
| 24. | 111-41-1 | Aminoethylethanolamine |
| 25. | 123-30-8 | p-Aminophenol |
| 26. | 628-63-7, 123-92-2 | Amyl acetates |
| 27. | 71-41-0 c | Amyl alcohols |
| 28. | 110-58-7 | Amyl amine |
| 29. | 543-59-9 | Amyl chloride |
| 30. | 110-66-7 c | Amyl mercaptans |
| 31. | 1322-06-1 | Amyl phenol |
| 32. | 62-53-3 | Aniline |
| 33. | 142-04-1 | Aniline hydrochloride |
| 34. | 29191-52-4 | Anisidine |
| 35. | 100-66-3 | Anisole |
| 36. | 118-92-3 | Anthranilic acid |
| 37. | 84-65-1 | Anthraquinone |
| 38. | 100-52-7 | Benzaldehyde |
| 39. | 55-21-0 | Benzamide |
| 40. | 71-43-2 | Benzene |
| 41. | 98-48-6 | Benzenedisulfonic acid |
| 42. | 98-11-3 | Benzenesulfonic acid |
| 43. | 134-81-6 | Benzil |
| 44. | 76-93-7 | Benzilic acid |
| 45. | 65-85-0 | Benzoic acid |
| 46. | 119-53-9 | Benzoin |
| 47. | 100-47-0 | Benzonitrile |
| 48. | 119-61-9 | Benzophenone |
| 49. | 98-07-7 | Benzotrichloride |
| 50. | 98-88-4 | Benzoyl chloride |
| 51. | 100-51-6 | Benzyl alcohol |
| 52. | 100-46-9 | Benzylamine |
| 53. | 120-51-4 | Benzyl benzoate |
| 54. | 100-44-7 | Benzyl chloride |
| 55. | 98-87-3 | Benzyl dichloride |
| 56. | 92-52-4 | Biphenyl |
| 57. | 80-05-7 | Bisphenol A |
| 58. | 10-86-1 | Bromobenzene |
| 59. | 27497-51-4 | Bromonaphthalene |
| 60. | 106-99-0 | Butadiene |
| 61. | 106-98-9 | 1-Butene |
| 62. | 123-86-4 | n-Butyl acetate |
| 63. | 141-32-2 | n-Butyl acrylate |
| 64. | 71-36-3 | n-Butyl alcohol |
| 65. | 78-92-2 | s-Butyl alcohol |
| 66. | 75-65-0 | t-Butyl alcohol |
| 67. | 109-73-9 | n-Butylamine |
| 68. | 13952-84-6 | s-Butylamine |
| 69. | 75-64-9 | t-Butylamine |
| 70. | 98-73-7 | p-tert-Butyl benzoic acid |
| 71. | 107-88-0 | 1,3-Butylene glycol |
| 72. | 123-72-8 | n-Butyraldehyde |
| 73. | 107-92-6 | Butyric acid |
| 74. | 106-31-0 | Butyric anhydride |
| 75. | 109-74-0 | Butyronitrile |
| 76. | 105-60-2 | Caprolactam |
| 77. | 75-1-50 | Carbon disulfide |
| 78. | 558-13-4 | Carbon tetrabromide |
| 79. | 56-23-5 | Carbon tetrachloride |
| 80. | 9004-35-7 | Cellulose acetate |
| 81. | 79-11-8 | Chloroacetic acid |
| 82. | 108-42-9 | m-Chloroaniline |
| 83. | 95-51-2 | o-Chloroaniline |
| 84. | 106-47-8 | p-Chloroaniline |
| 85. | 35913-09-8 | Chlorobenzaldehyde |
| 86. | 108-90-7 | Chlorobenzene |
| 87. | 118-91-2,535-80-8, 74-11-3c | Chlorobenzoic acid |
| 88. | 2136-81-4,2136-89-2, 5216-25-1c | Chlorobenzotrichloride |
| 89. | 1321-03-5 | Chlorobenzoyl chloride |
| 90. | 25497-29-4 | Chlorodifluoromethane |
| 91. | 75-45-6 | Chlorodifluoroethane |
| 92. | 67-66-3 | Chloroform |
| 93. | 25586-43-0 | Chloronaphthalene |
| 94. | 88-73-3 | o-Chloronitrobenzene |
| 95. | 100-00-5 | p-Chloronitrobenzene |
| 96. | 25167-80-0 | Chlorophenols |
| 97. | 126-99-8 | Chloroprene |
| 98. | 7790-94-5 | Chlorosulfonic acid |
| 99. | 108-41-8 | m-Chlorotoluene |
| 100. | 95-49-8 | o-Chlorotoluene |
| 101. | 106-43-4 | p-Chlorotoluene |
| 102. | 75-72-9 | Chlorotrifluoromethane |
| 103. | 108-39-4 | m-Cresol |
| 104. | 95-48-7 | o-Cresol |
| 105. | 106-44-5 | p-Cresol |
| 106. | 1319-77-3 | Cresols (mixed) |
| 107. | 1319-77-3 | Cresylic acid |
| 108. | 4170-30-3 | Crotonaldehyde |
| 109. | 3724-65-0 | Crotonic acid |
| 110. | 98-82-8 | Cumene |
| 111. | 80-15-9 | Cumene hydroperoxide |
| 112. | 372-09-8 | Cyanoacetic acid |
| 113. | 506-77-4 | Cyanogen chloride |
| 114. | 108-80-5 | Cyanuric acid |
| 115. | 108-77-0 | Cyanuric chloride |
| 116. | 110-82-7 | Cyclohexane |
| 117. | 108-93-0 | Cyclohexanol |
| 118. | 108-94-1 | Cyclohexanone |
| 119. | 110-83-8 | Cyclohexene |
| 120. | 108-91-8 | Cyclohexylamine |
| 121. | 111-78-4 | Cyclooctadiene |
| 122. | 112-30-1 | Decanol |
| 123. | 123-42-2 | Diacetone alcohol |
| 124. | 27576-04-1 | Diaminobenzoic acid |
| 125. | 95-76-1,95-82-9, 554-00-7, 608-27-5, 608-31-1, 626-43-7, 27134-27-6, 57311-92-9c | Dichloroaniline |
| 126. | 541-73-1 | m-Dichlorobenzene |
| 127. | 95-50-1 | o-Dichlorobenzene |
| 128. | 106-46-7 | p-Dichlorobenzene |
| 129. | 75-71-8 | Dichlorodifluoromethane |
| 130. | 111-44-4 | Dichloroethyl ether |
| 131. | 107-06-2 | 1,2-Dichloroethane (EDC) |
| 132. | 96-23-1 | Dichlorohydrin |
| 133. | 26952-23-8 | Dichloropropene |
| 134. | 101-83-7 | Dicyclohexylamine |
| 135. | 109-89-7 | Diethylamine |
| 136. | 111-46-6 | Diethylene glycol |
| 137. | 112-36-7 | Diethylene glycol diethyl ether |
| 138. | 111-96-6 | Diethylene glycol dimethyl ether |
| 139. | 112-34-5 | Diethylene glycol monobutyl ether |
| 140. | 124-17-4 | Diethylene glycol monobutyl ether acetate |
| 141. | 111-90-0 | Diethylene glycol monoethyl ether |
| 142. | 112-15-2 | Diethylene glycol monoethyl ether acetate |
| 143. | 111-77-3 | Diethylene glycol monomethyl ether |
| 144. | 64-67-5 | Diethyl sulfate |
| 145. | 75-37-6 | Difluoroethane |
| 146. | 25167-70-8 | Diisobutylene |
| 147. | 26761-40-0 | Diisodecyl phthalate |
| 148. | 27554-26-3 | Diisooctyl phthalate |
| 149. | 674-82-8 | Diketene |
| 150. | 124-40-3 | Dimethylamine |
| 151. | 121-69-7 | N,N-Dimethylaniline |
| 152. | 115-10-6 | N,N-Dimethyl ether |
| 153. | 68-12-2 | N,N-Dimethylformamide |
| 154. | 57-14-7 | Dimethylhydrazine |
| 155. | 77-78-1 | Dimethyl sulfate |
| 156. | 75-18-3 | Dimethyl sulfide |
| 157. | 67-68-5 | Dimethyl sulfoxide |
| 158. | 120-61-6 | Dimethyl terephthalate |
| 159. | 99-34-3 | 3,5-Dinitrobenzoic acid |
| 160. | 51-28-5 | Dinitrophenol |
| 161. | 25321-14-6 | Dinitrotoluene |
| 162. | 123-91-1 | Dioxane |
| 163. | 646-06-0 | Dioxilane |
| 164. | 122-39-4 | Diphenylamine |
| 165. | 101-84-8 | Diphenyl oxide |
| 166. | 102-08-9 | Diphenyl thiourea |
| 167. | 25265-71-8 | Dipropylene glycol |
| 168. | 25378-22-7 | Dodecene |
| 169. | 28675-17-4 | Diodecylaniline |
| 170. | 27193-86-8 | Dodecylphenol |
| 171. | 106-89-8 | Epichlorohydrin |
| 172. | 64-17-5 | Ethanol |
| 173. | 141-43-5 c | Ethanolamines |
| 174. | 141-78-6 | Ethyl acetate |
| 175. | 141-97-9 | Ethyl acetoacetate |
| 176. | 140-88-5 | Ethyl acrylate |
| 177. | 75-04-7 | Ethylamine |
| 178. | 100-41-4 | Ethylbenzene |
| 179. | 74-96-4 | Ethyl bromide |
| 180. | 9004-57-3 | Ethylcellulose |
| 181. | 75-00-3 | Ethyl chloride |
| 182. | 105-39-5 | Ethyl chloroacetate |
| 183. | 105-56-6 | Ethylcyanoacetate |
| 184. | 74-85-1 | Ethylene |
| 185. | 96-49-1 | Ethylene carbonate |
| 186. | 107-07-3 | Ethylene chlorohydrin |
| 187. | 107-15-3 | Ethylenediamine |
| 188. | 106-93-4 | Ethylene dibromide |
| 189. | 107-21-1 | Ethylene glycol |
| 190. | 111-55-7 | Ethylene glycol diacetate |
| 191. | 110-71-4 | Ethylene glycol dimethyl ether |
| 192. | 111-76-2 | Ethylene glycol monobutyl ether |
| 193. | 112-07-2 | Ethylene glycol monobutyl ether acetate |
| 194. | 110-80-5 | Ethylene glycol monoethyl ether |
| 195. | 111-15-9 | Ethylene glycol monoethyl ether acetate |
| 196. | 109-86-4 | Ethylene glycol monomethyl ether |
| 197. | 110-49-6 | Ethylene glycol monomethyl ether acetate |
| 198. | 122-99-6 | Ethylene glycol monophenyl ether |
| 199. | 2807-30-9 | Ethylene glycol monopropyl ether |
| 200. | 75-21-8 | Ethylene oxide |
| 201. | 60-29-7 | Ethyl ether |
| 202. | 104-76-7 | 2-Ethylhexanol |
| 203. | 122-51-0 | Ethyl orthoformate |
| 204. | 95-92-1 | Ethyl oxalate |
| 205. | 41892-71-1 | Ethyl sodium oxalacetate |
| 206. | 50-00-0 | Formaldehyde |
| 207. | 75-12-7 | Formamide |
| 208. | 64-18-6 | Formic acid |
| 209. | 110-17-8 | Fumaric acid |
| 210. | 98-01-1 | Furfural |
| 211. | 56-81-5 | Glycerol |
| 212. | 26545-73-7 | Glycerol dichlorohydrin |
| 213. | 25791-96-2 | Glycerol triether |
| 214. | 56-40-6 | Glycine |
| 215. | 107-22-2 | Glyoxal |
| 216. | 118-74-1 | Hexachlorobenzene |
| 217. | 67-72-1 | Hexachloroethane |
| 218. | 36653-82-4 | Hexadecyl alcohol |
| 219. | 124-09-4 | Hexamethylenediamine |
| 220. | 629-11-8 | Hexamethylene glycol |
| 221. | 100-97-0 | Hexamethylenetetramine |
| 222. | 74-90-8 | Hydrogen cyanide |
| 223. | 123-31-9 | Hydroquinone |
| 224. | 99-96-7 | p-Hydroxybenzoic acid |
| 225. | 26760-64-5 | Isoamylene |
| 226. | 76-83-1 | Isobutanol |
| 227. | 110-19-0 | Isobutyl acetate |
| 228. | 115-11-7 | Isobutylene |
| 229. | 78-84-2 | Isobutyraldehyde |
| 230. | 79-31-2 | Isobutyric acid |
| 231. | 25339-17-7 | Isodecanol |
| 232. | 26952-21-6 | Isooctyl alcohol |
| 233. | 78-78-4 | Isopentane |
| 234. | 78-59-1 | Isophorone |
| 235. | 121-91-5 | Isophthalic acid |
| 236. | 78-79-5 | Isoprene |
| 237. | 67-63-0 | Isopropanol |
| 238. | 108-21-4 | Isopropyl acetate |
| 239. | 75-31-0 | Isopropylamine |
| 240. | 75-29-6 | Isopropyl chloride |
| 241. | 25168-06-3 | Isopropylphenol |
| 242. | 463-51-4 | Ketene |
| 243. | (b) | Linear alkyl sulfonate |
| 244. | 123-01-3 | Linear alkylbenzene (Linear dodecylbenzene) |
| 245. | 110-16-7 | Maleic acid |
| 246. | 108-31-6 | Maleic anhydride |
| 247. | 6915-15-7 | Malic acid |
| 248. | 141-79-7 | Mesityl oxide |
| 249. | 121-47-1 | Metanilic acid |
| 250. | 79-41-4 | Methacrylic acid |
| 251. | 563-47-3 | Methallyl chloride |
| 252. | 67-56-1 | Methanol |
| 253. | 79-20-9 | Methyl acetate |
| 254. | 105-45-3 | Methyl acetoacetate |
| 255. | 74-89-5 | Methylamine |
| 256. | 100-61-8 | n-Methylaniline |
| 257. | 74-83-9 | Methyl bromide |
| 258. | 37365-71-2 | Methyl butynol |
| 259. | 74-87-3 | Methyl chloride |
| 260. | 108-87-2 | Methylcyclohexane |
| 261. | 1331-22-2 | Methylcyclohexanone |
| 262. | 75-09-2 | Methylene chloride |
| 263. | 101-77-9 | Methylene dianiline |
| 264. | 101-68-8 | Methylene diphenyl diisocyanate |
| 265. | 78-93-3 | Methyl ethyl ketone |
| 266. | 107-31-3 | Methyl formate |
| 267. | 108-11-2 | Methyl isobutyl carbinol |
| 268. | 108-10-1 | Methyl isobutyl ketone |
| 269. | 80-62-6 | Methyl methacrylate |
| 270. | 77-75-8 | Methylpentynol |
| 271. | 98-83-9 | [ALPHA]-Methyl styrene |
| 272. | 110-91-8 | Morpholine |
| 273. | 85-47-2 | [ALPHA]-Naphthalene sulfonic acid |
| 274. | 120-18-3 | [BITA]-Naphthalene sulfonic acid |
| 275. | 90-15-3 | [ALPHA]-Naphthol |
| 276. | 135-19-3 | [BITA]-Naphthol |
| 277. | 75-98-9 | Neopentanoic acid |
| 278. | 88-74-4 | o-Nitroaniline |
| 279. | 100-01-6 | p-Nitroaniline |
| 280. | 91-23-6 | o-Nitroanisole |
| 281. | 100-17-4 | p-Nitroanisole |
| 282. | 98-95-3 | Nitrobenzene |
| 283. | 27178-83-2 c | Nitrobenzoic acid (o, m and p) |
| 284. | 79-24-3 | Nitroethane |
| 285. | 75-52-5 | Nitromethane |
| 286. | 88-75-5 | 2-Nitrophenol |
| 287. | 25322-01-4 | Nitropropane |
| 288. | 1321-12-6 | Nitrotoluene |
| 289. | 27215-95-8 | Nonene |
| 290. | 25154-52-3 | Nonylphenol |
| 291. | 27193-28-8 | Octylphenol |
| 292. | 123-63-7 | Paraldehyde |
| 293. | 115-77-5 | Pentaerythritol |
| 294. | 109-66-0 | n-Pentane |
| 295. | 109-67-1 | 1-Pentene |
| 296. | 127-18-4 | Perchloroethylene |
| 297. | 594-42-3 | Perchloromethyl mercaptan |
| 298. | 94-70-2 | o-Phenetidine |
| 299. | 156-43-4 | p-Phenetidine |
| 300. | 108-95-2 | Phenol |
| 301. | 98-67-9, 585-38-6, 609-46-1, 1333-39-7 c | Phenolsulfonic acids |
| 302. | 91-40-7 | Phenyl anthranilic acid |
| 303. | (b) | Phenylenediamine |
| 304. | 75-44-5 | Phosgene |
| 305. | 85-44-9 | Phthalic anhydride |
| 306. | 85-41-6 | Phthalimide |
| 307. | 108-99-6 | b-Picoline |
| 308. | 110-85-0 | Piperazine |
| 309. | 9003-29-6,25036-29-7 c | Polybutenes |
| 310. | 25322-68-3 | Polyethylene glycol |
| 311. | 25322-69-4 | Polypropylene glycol |
| 312. | 123-38-6 | Propionaldehyde |
| 313. | 79-09-4 | Propionic acid |
| 314. | 71-23-8 | n-Propyl alcohol |
| 315. | 107-10-8 | Propylamine |
| 316. | 540-54-5 | Propyl chloride |
| 317. | 115-07-1 | Propylene |
| 318. | 127-00-4 | Propylene chlorohydrin |
| 319. | 78-87-5 | Propylene dichloride |
| 320. | 57-55-6 | Propylene glycol |
| 321. | 75-56-9 | Propylene oxide |
| 322. | 110-86-1 | Pyridine |
| 323. | 106-51-4 | Quinone |
| 324. | 108-46-3 | Resorcinol |
| 325. | 27138-57-4 | Resorcylic acid |
| 326. | 69-72-7 | Salicylic acid |
| 327. | 127-09-3 | Sodium acetate |
| 328. | 532-32-1 | Sodium benzoate |
| 329. | 9004-32-4 | Sodium carboxymethyl cellulose |
| 330. | 3926-62-3 | Sodium chloroacetate |
| 331. | 141-53-7 | Sodium formate |
| 332. | 139-02-6 | Sodium phenate |
| 333. | 110-44-1 | Sorbic acid |
| 334. | 100-42-5 | Styrene |
| 335. | 110-15-6 | Succinic acid |
| 336. | 110-61-2 | Succinonitrile |
| 337. | 121-57-3 | Sulfanilic acid |
| 338. | 126-33-0 | Sulfolane |
| 339. | 1401-55-4 | Tannic acid |
| 340. | 100-21-0 | Terephthalic acid |
| 341. | 79-34-5 c | Tetrachloroethanes |
| 342. | 117-08-8 | Tetrachlorophthalic anhydride |
| 343. | 78-00-2 | Tetraethyl lead |
| 344. | 119-64-2 | Tetrahydronaphthalene |
| 345. | 85-43-8 | Tetrahydrophthalic anhydride |
| 346. | 75-74-1 | Tetramethyl lead |
| 347. | 110-60-1 | Tetramethylenediamine |
| 348. | 110-18-9 | Tetramethylethylenediamine |
| 349. | 108-88-3 | Toluene |
| 350. | 95-80-7 | Toluene-2,3-diamine |
| 351. | 584-84-9 | Toluene-2,4-diisocyanate |
| 352. | 26471-62-5 | Toluene diisocyanates (mixture) |
| 353. | 1333-07-9 | Toluenesulfonamide |
| 354. | 104-15-4c | Toluenesulfonic acids |
| 355. | 98-59-9 | Toluenesulfonyl chloride |
| 356. | 26915-12-8 | Toluidines |
| 357. | 87-61-6, 108-70-3, 120-82-1c | Trichlorobenzenes |
| 358. | 71-55-6 | 1,1,1-Trichloroethane |
| 359. | 79-00-5 | 1,1,2-Trichloroethane |
| 360. | 79-01-6 | Trichloroethylene |
| 361. | 75-69-4 | Trichlorofluoromethane |
| 362. | 96-18-4 | 1,2,3-Trichloropropane |
| 363. | 76-13-1 | 1,1,2-Trichloro-1,2,2-trifluoroethane |
| 364. | 121-44-8 | Triethylamine |
| 365. | 112-27-6 | Triethylene glycol |
| 366. | 112-49-2 | Triethylene glycol dimethyl ether |
| 367. | 7756-94-7 | Triisobutylene |
| 368. | 75-50-3 | Trimethylamine |
| 369. | 57-13-6 | Urea |
| 370. | 108-05-4 | Vinyl acetate |
| 371. | 75-01-4 | Vinyl chloride |
| 372. | 75-35-4 | Vinylidene chloride |
| 373. | 25013-15-4 | Vinyl toluene |
| 374. | 1330-20-7 | Xylenes (mixed) |
| 375. | 95-47-6 | o-Xylene |
| 376. | 106-42-3 | p-Xylene |
| 377. | 1300-71-6 | Xylenol |
| 378. | 1300-73-8 | Xylidine |
aCAS numbers refer to the Chemical Abstracts Registry numbers assigned to specific chemicals, isomers, or mixtures of chemicals. Some isomers or mixtures that are covered by the standards do not have CAS numbers assigned to them. The standards apply to all of the chemicals listed, whether CAS numbers have been assigned or not.
bNo CAS number(s) have been assigned to this chemical, its isomers, or mixtures containing these chemicals.
cCAS numbers for some of the isomers are listed; the standards apply to all of the isomers and mixtures, even if CAS numbers have not been assigned.
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