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! I <br /> 1 <br /> + r <br /> Section INo "r 6 ' <br /> k'evision No` 0 <br /> Rate September 5, 1991 <br /> Page 5 of, 55 <br /> I � , <br /> I r <br /> 114i <br /> I <br /> !exceeds that of syringe collection 'The 'high ,capacity isonecessary to meet <br /> typical client speca io <br /> 'cifins T <br /> I <br /> ! t <br /> r , <br /> TABLE 6=1 I Breakthrbugh Volumes ,(in Liters) for US EPA TO-1 Hydrocarbons <br /> on the Carbosievel S-III/Carbopack'B/Carbotrap `C' Thermal <br /> 'Desorption Tube <br /> Hydrocarbon Carbosieve S-III Carbopack B Carbotrap C <br /> (125 ,mg) , (200 mg) (300 mg) <br /> Vinyl Chloride 158 1 1' - <br /> Chloroform, ' -` _0_14 - <br /> �, 1,2-Dichloroethane - '2'7� - <br /> 1,1,1-Trichloroethane - 4 7 - <br /> Carbon, tetrachloride '} ' - 6 8 - <br /> 1,2-Dichloropropane '- 2 5 - <br /> Trichloroethylene - - r 1 7 - <br /> Bromoform; i 2 2 - • <br /> 841 <br /> Tetrachloroethylene <br /> - <br /> - <br /> n- eptane - 284 <br /> T HBenzene; = - _ -- 273 - <br /> ,Toluene - 130 - <br /> Ethylbenzene - 4060; 12 9 <br /> p-Xylene - -, 11 2 <br /> m-Xylene - - 11 0 <br /> to-Xylene - - 11 0 <br /> Cumene - - 27 8 <br /> ! <br /> I � <br /> b 2 2 Sample Collection " <br /> I, ' <br /> After` purging 3 probe volumes from the sampling train, the bellows valve <br /> on the adaptor is shut offandthe stainless steel sample, cartridge housing <br /> is attached in line using Swagelok compression fittings to the adaptor and a <br /> programmable mass flow controller equipped with a vacuum regulated oiless <br /> diaphragm vacuum pump The flow controller is typically programmed to pump . <br /> 6-5 <br />