Accession Number:

AD0759131

Title:

Preliminary Sampling Methodology and Analytical Procedures for Ambient Sulfur Hexafluoride,

Descriptive Note:

Corporate Author:

ARMY MEDICAL ENVIRONMENTAL ENGINEERING RESEARCH UNIT EDGEWOOD ARSENAL MD

Personal Author(s):

Report Date:

1973-01-01

Pagination or Media Count:

23.0

Abstract:

A preliminary evaluation of techniques of sampling and gas chromatographic analysis for low levels of sulfur hexafluoride was conducted to determine the most feasible method for available equipment. Using a Tracor MT-150 gas chromatograph equipped with Nickel 63 electron capture detector and polarized dc voltable, it was possible to detect sulfur hexafluoride at a concentration of 0.06 ppb with a 5A molecular sieve column and nitrogen carrier gas, without preconcentration of the sample. Also, a comparison of glass and Saran sampling materials proved that no detectable loss of the tracer gas resulted with the Saran bags between 6 ppm and 0.06 ppb SF6 concentration whereas considerable loss of SF6 in the low concentration range 6 ppb occurs possibly from adsorption by the glassware. Author

Subject Categories:

  • Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE