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Determination of 1,3-Butadiene in Workplace Air: Reevaluation of NIOSH (National Institute for Occupational Safety and Health) Method S91 and Development of NIOSH Method 1024,

PB89120596

Publication Date	1988
Personal Author	Lunsford, R. A.; Gagnon, Y. T.
Page Count	14
Abstract	NIOSH Method S91 for the determination of 1,3-butadiene in air was reevaluated, and a new method was developed. Limitations to Method S91 included the fact that the lower quantitation limit appeared to be about 3.4 parts per million (ppm) and the packed column gas chromatographic analysis was subject to interference. The new method developed, Method 1024, employed collection on tandem coconut shell charcoal tubes, desorption with methylene-chloride, and high resolution gas chromatographic analysis. Evaluation of Method 1024 indicated that it should be useful for determining full shift time weighted average exposures in humid air at concentrations ranging from 0.4 to 10 ppm. The sampler's capacity should permit quantitation of levels up to 100 ppm if desorbed samples are diluted so that they fall in the calibration range. In the chromatographic process, the combination of backflushable precolumn and aluminum-oxide fused silica capillary analytical columns offered the advantages of enhanced sensitivity enabling detection down to 0.005 ppm in 25 liters, and enhanced selectivity, limiting the need for confirmatory techniques.
Keywords	Butadienes Exposure Hazardous materials Airborne wastes Collecting methods Carcinogens Chromatographic analysis Air sampling Toxic substances Occupational safety and health CAS-106-99-0 Airborne pollutants Air pollution detection Gas chromatography
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	68A - Air Pollution & Control 68G - Environmental Health & Safety 57Y - Toxicology 43F - Environment 99A - Analytical Chemistry
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Physical Sciences and Engineering.
Document Type	Technical Report
NTIS Issue Number	198903

Determination of 1,3-Butadiene in Workplace Air: Reevaluation of NIOSH (National Institute for Occupational Safety and Health) Method S91 and Development of NIOSH Method 1024,

Determination of 1,3-Butadiene in Workplace Air: Reevaluation of NIOSH (National Institute for Occupational Safety and Health) Method S91 and Development of NIOSH Method 1024,
PB89120596

Publication Date	1988
Personal Author	Lunsford, R. A.; Gagnon, Y. T.
Page Count	14
Abstract	NIOSH Method S91 for the determination of 1,3-butadiene in air was reevaluated, and a new method was developed. Limitations to Method S91 included the fact that the lower quantitation limit appeared to be about 3.4 parts per million (ppm) and the packed column gas chromatographic analysis was subject to interference. The new method developed, Method 1024, employed collection on tandem coconut shell charcoal tubes, desorption with methylene-chloride, and high resolution gas chromatographic analysis. Evaluation of Method 1024 indicated that it should be useful for determining full shift time weighted average exposures in humid air at concentrations ranging from 0.4 to 10 ppm. The sampler's capacity should permit quantitation of levels up to 100 ppm if desorbed samples are diluted so that they fall in the calibration range. In the chromatographic process, the combination of backflushable precolumn and aluminum-oxide fused silica capillary analytical columns offered the advantages of enhanced sensitivity enabling detection down to 0.005 ppm in 25 liters, and enhanced selectivity, limiting the need for confirmatory techniques.
Keywords	Butadienes Exposure Hazardous materials Airborne wastes Collecting methods Carcinogens Chromatographic analysis Air sampling Toxic substances Occupational safety and health CAS-106-99-0 Airborne pollutants Air pollution detection Gas chromatography
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	68A - Air Pollution & Control 68G - Environmental Health & Safety 57Y - Toxicology 43F - Environment 99A - Analytical Chemistry
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Physical Sciences and Engineering.
Document Type	Technical Report
NTIS Issue Number	198903