Method for Creating Gas Standards from Liquid HFE-7100 and FC-72.

Irwin, A. N. ; Thornberg, S. M. ; Brown, J. R. ; WHite, M. ; Hochrein, J. M.

Technical Information Center Oak Ridge Tennessee

关键词: Weapons;    Gases;    Standards;    Solvents;    Liquid fuels;   

RP-ID  :  DE2007912656

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

HFE-7100 and FC-72 fluorinert are two fluids used during weapon component manufacturing. HFE-7100 is a solvent used in the cleaning of parts, and FC-72 is the blowing agent of a polymeric removable foam. The presence of either FC-72 or HFE-7100 gas in weapon components can provide valuable information as to the stability of the materials. Therefore, gas standards are needed so HFE-7100 and FC-72 gas concentrations can be accurately measured. There is no current established procedure for generating gas standards of either HFE-7100 or FC-72. This report outlines the development of a method to generate gas standards ranging in concentration from 0.1 ppm to 10% by volume. These standards were then run on a Jeol GC-Mate II mass spectrometer and analyzed to produce calibration curves. We present a manifold design that accurately generates gas standards of HFE-7100 and FC-72 and a procedure that allows the amount of each to be determined.