National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Inject sample aliquot manually using solvent flush technique or with autosampler. NOTE: If peak area is above the linear range of the working standards, dilute with eluent, reanalyze and apply the appropriate dilution factor in calculations. Measure peak area. Divide the peak area of analyte by the peak area of internal standard on the same chromatogram. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ 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. Sample at an accurately known flow rate between 0.01 and 1 L/min for a total sample size of 1.5 to 15 L. Cap the samplers with plastic (not rubber) caps and pack securely for shipment. SAMPLE PREPARATION: 5. 6. 7. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Determine desorption efficiency (DE) at least once for each batch of charcoal used for sampling in the calibration range (step 8) . Prepare three tubes at each of five levels plus three media blanks. NIOSH Manual of Analytical Methods (NMAM) , Fourth Edition, 8/15/94 1,1-DICHLORO-1-NITROETHANE: METHOD 1601, Issue 2, dated 15 August 1994 - Page 3 of 3 a. b. 10. Remove and discard back sorbent section of a media blank sampler. Inject a known amount of calibration stock solution directly onto front sorbent section with a microliter syringe. c. Cap the tube. Allow to stand overnight. d. ”
