N.H. Admin. Code § Saf-C 6303.04

Current through Register No. 44, October 31, 2024

Section Saf-C 6303.04 - Preventive Maintenance-Equipment

(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.

N.H. Admin. Code § Saf-C 6303.04

Renumbered from Saf-C 6302.04 Volume XXXVII Number 2, Filed January 12, 2017, Proposed by #12064, Effective 1/1/2017, Expires 6/30/2017.