NIOSHTIC-2 Publications Search

Personal Atmospheric Gas Sampler With a Critical Orifice. Part 2. System for Handling and Analyzing the Gas From the Sampler.

Authors
Eaton-HG; Stone-JP; Williams-FW
Source
Naval Research Laboratory, Washington, D.C., 1976 Mar:15 pages
Link
NIOSHTIC No.
00121725
Abstract
The method of extracting and analyzing contaminants from the Naval Research Laboratory personal atmospheric gas sampler is described. The gases are extracted by vacuum at a pressure of 100 torr and carried through two subsystems into a gas chromatograph with a thermal conductivity cell and dual hydrogen flame ionization detectors. The first subsystems uses a backflush valve to detect ethane (74840), freon-12 (75718), vinyl-chloride (75014), freon-11 (75694), vinylidene-chloride (75354), hexane (110543), benzene (71432), and total hydrocarbons. The second subsystem uses a molecular sieve to detect methane (74828) and carbon-monoxide (630080). The backflush system allowed detection of less volatile hydrocarbons such as n-decane (124185) and additionally cleans the column. The sensitivity of the two systems was about 1 part per million for the gases analyzed.
Keywords
NIOSH-Contract; Contract-IA-74-9; Analytical-methods; Air-contamination; Air-sampling-equipment; Chemical-analysis; Air-monitoring; Analytical-instruments; Analytical-processes; Gas-sampling;
CAS No.
74-84-0; 75-71-8; 75-01-4; 75-69-4; 75-35-4; 110-54-3; 71-43-2; 74-82-8; 630-08-0; 124-18-5;
Publication Date
19760322
Funding Type
Contract;
Fiscal Year
1976
Identifying No.
Contract-IA-74-9
Source Name
Naval Research Laboratory, Washington, D.C., 15 pages, 4 references
State
WA;
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division