Method and apparatus for detecting and controlling a volatile su

Details Method and apparatus for detecting and controlling a volatile su Method and apparatus for detecting and controlling a volatile su

1976-04-02

1978-08-22

Yasich, Daniel M.

Measuring and testing

Testing sealed receptacle

62 49, 62129, F17C 1302, G01M 304

Patent

active

041079760

ABSTRACT:
In controlling a volatile substance, for example in controlling the release of ethylene oxide for use in a sterilization apparatus, the volatile substance is contained under pressure in a confined system and the latter is immersed in a fluid. The fluid is capable of absorbing the volatile substance such that if any of the volatile substance leaks from the confined systems into the immersion fluid, physicochemical changes will occur in the immersion fluid. These physicochemical changes may be sensed by various detecting devices which thereby serve to detect leaks of volatile substance from the confined system. The immersion fluid may be used as a heat transfer medium in heat exchange relationship with the confined system and desired associated control elements such as a pressure regulator to thereby prevent undesirable condensation of the volatile substance.

REFERENCES:
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Publ. "Biological-Chem. Indicator for Ethylene Oxide Sterilization" by Brewer et al., Journal of Pharmaceutical Sciences, (pp. 57-59), 1/66.

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