National Institute for Occupational Safety and Health

“ Allow to stand 30 min with occasional agitation. CALIBRATION AND QUALITY CONTROL: 8.
Calibrate daily with at least six working standards over the range of 0.1 to 8 mg n-butyl glycidyl ether per sample. a. Add a known amount of n-butyl glycidyl ether to CS2 in 10-mL volumetric flask and dilute to the mark. Use serial dilutions as needed for smaller concentrations. b. Analyze with samples and blanks (steps 11 and 12) . c. Prepare calibration graph (n-butyl glycidyl ether peak area vs. mg n-butyl glycidyl ether) . 9. ”

“ Pressure drop across the tube at 1.0 L/min air flow must be less than 3.4 kPa. Tubes are commercially available. 2.
Personal sampling pump, 0.01 to 0.2 L/min, with flexible connecting tubing. 3.
Gas chromatograph, FID, integrator, and column (page 1616-1) . 4. ”

“ Available as GPO Stock #017-033-00231-2 from Superintendent of Documents, Washington, DC 20402. [2] NIOSH Manual of Analytical Methods, 2nd ed., Vol. 2, S81, U.S. Department of Health, Education, and Welfare, Publ. ”