HYD RO CAR BO NS, H ALO GE NAT ED: M ETH OD 1003, Issue 3, dated 1 5 Ma rch 2003 Page 7 o f 7 TABLE 3. SAMPLING LIMITS.
Compound Min
Air Sample Volume (L) Max
4 @ 0.5 ppm 3 @ 10 ppm 1.5 @ 75 ppm 1 @ 50 ppm 0.5 @ 100 ppm 1 @ 50 ppm 0.1 @ 350 ppm 1.0 @ 100 ppm 0.2 @ 100 ppm 6 @ 1 ppm 0.5 @ 200 ppm 1 @ 50 ppm 1 @ 75 ppm 0.2 @ 200 ppm 3 @ 1 ppm 2 @ 10 ppm 0.6 @ 50 ppm
Bromoform Carbon tetrachloride Chlorobenzene Chloroform 1,1-Dichloroethane Ethylene dichloride 1,1,1-Trichloroethane Tetrachloroethylene Trichloroethylene Benzyl chloride Chlorobromomethane o-Dichlorobenzene p-Dichlorobenzene 1,2-Dichloroethylene Hexachloroethane 1,1,2-Trichloroethane 1,2,3-Trichloropropane
70 150 40 50 15 50 8 40 30 50 60 10 8 5 70 60 60
Working Range, ppm, at Max Sample Volume
Target 10 15 10 15 10 3 3 3 10 10 5 3 3 3 10 10 10
0.2 to 4 2 to 105 10 to 430 2 to 190 4 to 250 16 to 1320 18 to 1450 9 to 1900 0.3 to 62.1 0.6 to 5.8 18 to 450 16 to 1100 27 to 330 16 to 560 0.3 to 8.3 1.8 to 64 3 to 310
TABLE 4. MEASUREMENT PARAMETERS.
Compound Bromoform Carbon tetrachloride Chlorobenzene Chloroform 1,1-Dichloroethane Ethylene dichloride Tetrachloroethylene 1,1,1-Trichloroethane Trichlorethylene Benzyl chloride Chlorobromomethane o-Dichlorobenzene p-Dichlorobenzene 1,2-Dichloroethylene Hexachloroethane 1,1,2-Trichloroethane 1,2,3-Trichloropropane
Limit of Detection (LOD)
Limit of Quantitation (LOQ)
Precision (S r )
6.0 4.0 0.6 0.8 2.0 0.7 2.0 1.0 0.6 1.0 1.5 0.8 2.0 2.0 2.0 1.0 1.0
19.3 20.0 110.0 15.0 5.1 2.3 7.1 3.0 1.9 4.5 41.0 2.7 7.5 5.1 6.6 3.0 2.7
0.051 0.046 0.025 0.035 0.030 0.026 0.032 0.009 0.018 0.076 0.053 0.022 0.041 0.041 0.021 0.036 0.020
Units = µg analyte per sample Note: For a few of the compounds in this method the LOQ values, when compared to the preceding method development results, may appear higher. This can be explained by the fact that in the initial method development no recovery study was conducted at a level near or above the instrumentally determined LOQ recoveries for each analyte.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
