National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ See SPECIAL PRECAUTIONS SPE CIAL PRECAUTIONS: 1,1,2,2-Tetrachloroethane is a powerful narcotic, liver poison, and suspected carcinogen, and can be abso rbed throu gh the sk in [3, 4] . Carbon disulfide is toxic and a serious fire and explosion hazard (flash point = - 30 °C) . W ork with these substances only in a hood. SAMPLING: 1. 2. 3. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Prepare c alibration graph (pe ak area vs. μg 1,1,2,2-tetrachloroethane) . Determine desorption efficiency (DE) at least once for each lot of sorbent used for sampling in the range of interest. Prepare three tubes at each of five concentrations plus three media blanks. a. Rem ove and disca rd back sorbent sec tion of a med ia blank sam pler. b. Injec t a kn own am oun t (2 to 25 μL ) of D E sto ck solution, or a serial dilution thereof, directly onto the front sorbent section with a microliter syringe. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Calibrate each personal sampling pump with a representative sampler in line. Break ends of the sampler imm ediately before sampling. Attach sampler to personal sampling pump with flexible tubing. Sam ple at a n ac curately kn own flow ra te betwee n 0.01 an d 0.2 L/m in for a total sam ple size of 3 to 30 L. Ca p the sam plers. Pac k secu rely for shipm ent. SAMPLE PREPARATION: 5. 6. 7. Place front and back sorbent sections of the sampler tube in separate vials. Discard glass wool plugs. Add 1.0 mL CS 2 to each vial. C ap each vial. Allow to stand 30 min with occasional agitation. ”
