National Institute for Occupational Safety and Health

“ Calculate concentration, C, of analyte in the air volume sampled, V (L) :
EVALUATION OF METHOD: The methods on which this method was based were validated under NIOSH Contract CDC-99-74-45 [5] . Desorption efficiency was checked by spiking known amounts of the compounds (either neat or in solutions with CS 2) on coconut shell charcoal. Samples were generated for acetone, cyclohexanone, 2-pentanone, and methyl isobutyl ketone by heating a quantity of the liquid to just below its boiling point in a 3-necked, 500-mL round bottom flask. ”

“ Documentation of the NIOSH Validation Tests, U.S. Department of Health, Education, and Welfare, Publ. (NIOSH) 77-185 (1977) , available as Stock No. PB 274-248 from NTIS, Springfield, VA 22161. [6] NIOSH Manual of Analytical Methods, 2nd. ”

“ Carbon disulfide is toxic and an acute fire and explosion hazard (flash point = -30 °C) ; work with it only in a hood. SAMPLING: 1. 2. 3. 4.
Calibrate each personal sampling pump with a representative sampler in line. Break the ends of the sampler immediately before sampling. Attach sampler to personal sampling pump with flexible tubing. ”