Current through Register No. 40, October 3, 2024
(a) The forensic breath testing supervisor
shall conduct a preventive maintenance on each approved instrument 6 months
after the initial check and at 6 month intervals.
(b) A preventive maintenance check pursuant
to RSA
265-A:12,II shall include:
(1) Analysis of a series of simulated breath
tests at known alcohol concentrations, to verify the accuracy and precision of
the approved instrument which shall meet the following criteria:
a. For known alcohol concentrations less than
0.10g/210L:
1. The accuracy of the readings
shall deviate no more than +/- 0.005 g/210L from the known alcohol
concentration; and
2. The total
precision range of the readings shall not exceed +/- 0.005 g/210L;
and
b. For known alcohol
concentrations equal to or greater than 0.10 g/210L:
1. The accuracy of the readings shall be
within +/- 5% of the known alcohol concentration; and
2. The total precision range of the readings
shall not exceed 5% of the target value;
(2) Verification of the approved instrument's
ability to detect and correct for acetone;
(3) Collection of captured samples at known
alcohol concentrations to verify the accuracy of the captured sample method
which shall meet the following criteria:
a.
For infrared values less than 0.10 g/210L, results shall agree within 0.01
g/210L of the infrared value; and
b. For infrared values equal to or greater
than 0.10 g/210L, results shall agree within +/- 10% of the infrared
value;
(4) Performance
of routine maintenance on the approved instrument and simulator as necessary to
maintain proper analytical functions; and
(5) Documentation of maintenance performed on
each approved instrument and simulator at the time of service.
(c) The forensic breath testing
supervisor shall certify the accuracy and precision of the approved instrument
on the preventive maintenance check form, pursuant to
RSA
265-A:12, II, once the requirements of (b)(1)
- (5) are completed.
(d) The
preventive maintenance check form shall specify the following:
(1) The approved instrument and simulator by
make, model and serial number;
(2)
The field location of the equipment;
(3) The date of certification and expiration;
and
(4) That the forensic breath
testing supervisor has found the approved instrument and simulator to be in
proper working order and that the equipment meets the preventive maintenance
requirements as outlined in (b) above and
RSA
265-A:12, II.
(e) Repairs performed on the approved
instrument shall be documented and kept on file at the forensic science
laboratory. The approved instrument shall not be required to pass a preventive
maintenance check if the repair does not affect the accuracy or precision of
the breath test.
