New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 27B - SAMPLING AND ANALYTICAL PROCEDURES
Subchapter 1 - SAMPLING AND ANALYTICAL PROCEDURES FOR DETERMINING EMISSIONS OF PARTICLES FROM MANUFACTURING PROCESSES AND FROM COMBUSTION OF FUELS
Section 7:27B-1.5 - Sampling train

Universal Citation: NJ Admin Code 7:27B-1.5

Current through Register Vol. 56, No. 24, December 18, 2024

(a) The sampling train normally used by the Department is shown on page 1 of Appendix 1 and shall consist of the following:

1. A sampling nozzle (A) [FN*] made of stainless steel (316) and having a sharp, tapered leading edge. Its internal diameter shall be of an appropriate size to permit a sampling rate that is as close as possible to 0.75 CFM at isokinetic conditions;

2. A glass-lined stainless steel probe (B) * with a heating system capable of maintaining the temperature of the sample gas passing through it sufficiently high to prevent condensation of Water from occurring and a temperature sensor (T[1]) * to indicate the sample gas temperature;

3. A high-vacuum hose (C) * with a smooth, inert inner wall and with a heating system capable of maintaining the temperature of the sample gas passing through it sufficiently high to prevent condensation of water from occurring, and a temperature sensor (T[2]) * to indicate the sample gas temperature. In lieu of this hose, direct coupling of the probe (B) * and the glass cyclone and filter assembly (D[1] and D[2]) * may be used;

4. A sample collector consisting of a glass cyclone(D[1]) * followed by a glass fiber filter (Reeve-Angel 934AH **, MSA 1106BH ** or approved equivalent) in a glass holder (D[2]) *. The cyclone and filter assembly shall have a heating system (D) * capable of maintaining the temperature of the sample gas passing through it sufficiently high to prevent condensation of water from occurring, and a temperature sensor (T[3]) * to indicate the sample gas temperature. The use of the cyclone is optional when it is not necessary to prevent the filter from being overloaded by large particles;

5. A condenser system (E) * consisting of a Greenburg-Smith impinger (E[1]) * containing 100 ml. distilled water followed by a modified Greenburg-Smith impinger (E[2]) * (dry) for mist knockout, both immersed in an ice bath;

6. A drying tube (F) * containing Drierite ** or silica gel;

7. A hose (G) * capable of holding a vacuum of at least 15 inches of mercury;

8. A leak-free pump (H) * with coarse (H[1]) * and fine (H[2]) * flow control adjusters and vacuum gauge (P) *;

9. A dry gas test meter (I) * accurate within two per cent and temperature sensors (T[4]) * to indicate the sample gas inlet and outlet temperatures;

10. An orifice meter (J) * with an inclined manometer (M[2]) * as described in APCO Publication APTD-0581 (Reference 2);

11. A thermocouple (K) * attached to the probe (B) * its sensing portion adjacent to the sampling nozzle (A) * and equipped with a temperature sensor (T[5]) to indicate the stack gas temperature;

12. An "S" type pitot tube (L) [FN*] attached to the probe (B) * with its sensing portion adjacent to the nozzle and equipped with a differential pressure gauge (M[1]) * (inclined manometer or equivalent) to measure velocity head to within ten percent of the minimum value as determined during the preliminary traverse;

13. All glassware (cyclone, filter holder and impingers) should be interconnected with glass fittings having ball joints.

(b) When tests are performed to determine actual or potential emission rates, all outlets will be sampled simultaneously. When tests are performed to determine the efficiency of air pollution control apparatus, each inlet to and outlet from the control apparatus must be sampled simultaneously.

(c) All measuring devices including, but not limited to, pitot tubes, meters, gauges and thermocouples shall be properly calibrated and maintained to provide accurate data.

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