National Institute for Occupational Safety and Health

“ Carbon disulfide is toxic and an acute fire and explosion hazard (flash point = -30 °C) ; all work done with it must be performed in a fume 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. Sample at an accurately known flow rate between 0.02 and 0.2 L/min for a total sample size of 0.1 to 9 L. Cap the samplers with plastic (not rubber) caps and pack securely for shipment. ”

“ NOTE: If W b > W f /10, report breakthrough and possible sample loss. Calculate concentration, C, of analyte in the air volume sampled, V (L) :
EVALUATION OF METHOD: This method was evaluated over the range 446 to 1870 mg/m 3 at 23 °C and pressure of 770 mm Hg using 8-L samples [3] . Overall sampling and measurement precision, SˆrT, was 0.067, with average recovery of 96%. A sample stability evaluation has not been performed, nor has the sample stability been determined. The accuracy of ±29.4% does not meet the NIOSH criterion of ±25%. ”

“ NIOSH Manual of Analytical Methods, 3rd ed., V. 2, S50, U.S. Department of Health and Human Services, (1984) . Analytical Report for Organics on Charcoal Tubes, DataChem Sequence #3031-S, Unpubl. NIOSH (1981) Documentation of NIOSH Validation Tests, NIOSH Contract No. CDC-99-74-45. Department of Health, Education and Welfare. ”