Method for creating gas standards form liquid HFE-7100 and FC-72.

White, Michael K. ; Brown, Jason R. ; Thornberg, Steven Michael ; Hochrein, James Michael ; Irwin, Adriane Nadine

Sandia National Laboratories

关键词: Manufactures-Technological Innovations.;    Manufactured Materials.;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Mass Spectrometers;    Weapons Industry.;   

DOI  :  10.2172/912656
RP-ID  :  SAND2007-4470
RP-ID  :  AC04-94AL85000
RP-ID  :  912656

美国|英语

来源: UNT Digital 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.