National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ NIOSH/OSHA Occupational health guidelines for occupational hazards. U.S. Department of Health and Human Services, DHHS (NIOSH) Publication No. 81-123, available as GPO Stock #017-033-00337-8 from Superintendent of Documents, Washington, DC 20402. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Work 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. Sample at an accurately known flow rate between 0.01 and 0.05 L/min for a total sample size of 1 to 4 L. Cap the samplers and pack securely for shipment. SAMPLE PREPARATION: 5. 6. 7. Place the front and back sorbent sections of the sampler tube in separate vials. Discard the glass wool and foam plugs. Add 1.0 mL acetone to each vial. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ The concentration ofn-butyl mercaptan was independently determined from the syringe delivery rate and dilution flow rates. Desorption efficiency was 0.90 in the range 28 to 110 μg per sample. The breakthrough volume (effluent concentration = 5% of influent concentration) was 4.0 L; this was determined by sampling humid air (94% relative humidity) , containing 74 mg/m3 n-butyl mercaptan at 0.023 L/min. ”
