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A Gas Dilution System For Methyl Bromide.

Authors
Scheide-EP; Hughes-EE; Taylor-JK
Source
NIOSH 1973 Oct:11 pages
Link
NIOSHTIC No.
00149533
Abstract
A system capable of producing well defined test atmospheres of methyl-bromide (74839) in air and an analytical system for the analysis of these gas mixtures was assessed. Using a bulk mixture of 1,000 parts per million (ppm), methyl-bromide in nitrogen, and accurately blending the mixture with a stream of clean, dry air, concentrations between 5 and 100ppm were produced. The precision of these analyses was very good, indicating that the analytical system and sampling technique were reliable. The system described was capable of producing well defined test atmospheres of varying concentration of methyl-bromide in nitrogen from a pressurized cylinder with a stream of diluent air. Analysis of the bulk mixture and the dilutions were easily performed by gas chromatography. The authors conclude that this gas generation system should provide a means of calibrating the various analytical systems for methyl- bromide now in use.
Keywords
NIOSH-Author; Analytical-instruments; Air-quality-measurement; Laboratory-equipment; Research; Gas-chromatography; Laboratory-techniques; Monitors; Analytical-models; Vapors; Quantitative-analysis; Air-sampling;
CAS No.
74-83-9;
Publication Date
19731001
Fiscal Year
1974
NTIS Accession No.
NTIS Price
NIOSH Division
DLCD;
Source Name
Division of Laboratories and Criteria Development, NIOSH, U.S. Department of Health, Education, and Welfare, Cincinnati, Ohio, 11 pages, 1 reference
State
OH;
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