N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 56-4.7

Current through Register Vol. 46, No. 51, December 18, 2024

Section 56-4.7 - Air sampling equipment

(a) Sampling equipment. Area air sampling shall be performed using GFCI protected pumps with associated tubing, supports and airflow measuring, metering or recording devices.

(b) Duration, flow rate and calibration. Area air samples, except for background and clearance air samples, shall be collected and air samplers run for each entire work shift. Area air samples must be collected with a minimum flow rate capacity of two liters per minute and a maximum flow rate consistent with the applicable accepted air sampling and analysis methodology. The flow rate for each air sample shall be pre-calibrated and post-calibrated at the beginning and end of each air sample collection. The calibrations shall be recorded. Primary and secondary calibration devices shall be calibrated as per NYS DOH ELAP requirements. The air sampling technician shall be on-site to observe and maintain air sampling equipment for the duration of air sample collection.

(c) Placement of air sampling equipment. Air sampling equipment shall be in place and operational as follows:

(1) Placement of regulated abatement work area indoor air sampling equipment. Air sampling equipment shall not be placed in corners of rooms or near obstructions. Samplers shall be placed randomly around the regulated abatement work area. If the regulated abatement work area contains a number of rooms equivalent to the number of required samples based on floor area, a sampler shall be placed in each room. When the number of rooms is greater than the required number of samples, a representative number of rooms shall be selected, but in no case shall fewer samples be collected than the required number of samples based upon floor area. (See section 56-4.12, Table 2 of this Subpart.)

(2) Placement of outdoor air sampling equipment. Outdoor air sampling equipment shall be placed four to six feet above grade level and at least 10 feet away from obstructions that may influence wind patterns. If access to electricity and security concerns dictates a rooftop site, locations within 10 feet of vents or other structures on the roof shall be avoided.

(3) Samplers outside of the regulated abatement work area. Air sampling equipment shall be placed outside the regulated abatement work area within 10 feet of the critical barriers, decontamination enclosure entrances/exits and negative air ducts and exhausts, as applicable. (See section 56-4.12, Table 2 of this Subpart.)

N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 56-4.7