Sterilization indicators containing amino acid(s) and pH indicat

Details Sterilization indicators containing amino acid(s) and pH indicat Sterilization indicators containing amino acid(s) and pH indicat

1980-10-16

1982-05-04

Marantz, Sidney

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

116206, 252408, 435805, G01N 3122, G01N 3352

Patent

active

043281826

ABSTRACT:
An indicator which is used for indicating the completion of a sterilization process in which an article to be sterilized is exposed to formaldehyde vapor either dry or mixed with steam. The indicator comprises a mixture of preferably two amino acids and a pH indicator impregnated in a paper carrier. The amino acids and pH indicator are such that the change point of the pH indicator lies within the range of the change of pH value of the amino acid mix which occurs on exposure of the amino acids to formaldehyde vapor.

REFERENCES:
patent: 3386807 (1968-06-01), Edenbaum
patent: 3409405 (1968-11-01), Mohan
patent: 3852034 (1974-12-01), Gunther
patent: 3862824 (1975-01-01), Chapman
patent: 3875014 (1975-04-01), Forgione
patent: 3945798 (1976-03-01), Young
patent: 4015937 (1977-04-01), Miyamoto
patent: 4179397 (1979-12-01), Rohowetz
patent: 4240926 (1980-12-01), McNeely
patent: 4247297 (1981-01-01), Berti

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