Measuring and testing – Gas analysis – With compensation detail
Patent
1997-04-28
1998-11-03
Brock, Michael
Measuring and testing
Gas analysis
With compensation detail
73 3105, 73 6141, 422 86, 422 58, 62125, G01N 3122
Patent
active
058311440
ABSTRACT:
A process and apparatus for determining the amount of contamination in the lubricant phase of a refrigeration system. The process utilizes a clear glass tube which contains an inert substance such as glass beads coated with a solvatochromic compound, preferably the solvatochromic compound is a mixture of Benzophenoxazine and Benzophenoxazone. A sample of the lubricant to be tested is passed into the glass tube and passes over the glass beads, picking up a portion of the solvatochromic compound. A white absorbent material such as sterile cellulose is positioned adjacent the coated substrate and the color reaction between the lubricant and the solvatochromic compound is clearly evident on the white absorbent material which then can be compared with a standard set of colors to determine the amount of the contamination.
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Averill, Jr. Edgar W.
Brock Michael
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