GB854142A - The control of bacteriological sterilisation - Google Patents

The control of bacteriological sterilisation

Info

Publication number
GB854142A
GB854142A GB1276358A GB1276358A GB854142A GB 854142 A GB854142 A GB 854142A GB 1276358 A GB1276358 A GB 1276358A GB 1276358 A GB1276358 A GB 1276358A GB 854142 A GB854142 A GB 854142A
Authority
GB
United Kingdom
Prior art keywords
capsule
gas
sterilisation
reagent
contents
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1276358A
Inventor
Alec Royce
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boots Pure Drug Co Ltd
Original Assignee
Boots Pure Drug Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boots Pure Drug Co Ltd filed Critical Boots Pure Drug Co Ltd
Priority to GB1276358A priority Critical patent/GB854142A/en
Publication of GB854142A publication Critical patent/GB854142A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/226—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating the degree of sterilisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment
    • A61L2/28—Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour

Abstract

For determining when a gas sterilisation process is complete, there may be employed a device comprising an envelope permeable to said gas containing a liquid reagent reacting with said gas to produce a visibly detectable change with or without further treatment of said reagent. By suitably regulating the thickness of the envelope and the concentration of the reagent, the capsule will respond to the gas in the same time as the contaminating organism is destroyed by the gas. For use with ethylene oxide, a capsule containing an aqueous solution of magnesium chloride, hydrochloric acid may be used; a pH indicator (bromocresol purple, bromophenol blue) may be added to the contents of the capsule after exposure or may be included in the capsule: for methyl bromide there may be used a capsule containing ethanolamine and silver nitrate, the contents of which are added, after the desired contact with the gas, either to dilute nitric acid containing an adsorption indicator (phenosafranine) or to a solution containing nitric acid, ferric ammonium sulphate, ammonium thiocyanate and silver nitrate; for formaldehyde the capsule may contain methyl orange, hydroxylamine hydrochloride and sodium hydroxide. The capsule which is preferably transparent or translucent may be constructed of polythene or polyvinyl chloride. Other sterilisation gases referred to are sulphur dioxide and hydrogen cyanide.
GB1276358A 1958-04-22 1958-04-22 The control of bacteriological sterilisation Expired GB854142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1276358A GB854142A (en) 1958-04-22 1958-04-22 The control of bacteriological sterilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1276358A GB854142A (en) 1958-04-22 1958-04-22 The control of bacteriological sterilisation

Publications (1)

Publication Number Publication Date
GB854142A true GB854142A (en) 1960-11-16

Family

ID=10010680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1276358A Expired GB854142A (en) 1958-04-22 1958-04-22 The control of bacteriological sterilisation

Country Status (1)

Country Link
GB (1) GB854142A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382896A1 (en) * 1977-03-11 1978-10-06 Minnesota Mining & Mfg WATER VAPOR AND FORMALDEHYDE STERILIZATION INDICATOR
EP0060723A1 (en) * 1981-03-17 1982-09-22 Ekika Carbon Dioxide Co. Ltd. Indicator for detecting ethylene oxide
EP1374918A1 (en) * 2002-06-24 2004-01-02 Illinois Tool Works Inc. Ethylene oxide sterilization indicator inks
EP1466986A1 (en) * 2003-04-09 2004-10-13 Herbener, Heinz-Gerd Method for testing the efficacy of gassterilisation, especially sterilisation with ethyleneoxide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382896A1 (en) * 1977-03-11 1978-10-06 Minnesota Mining & Mfg WATER VAPOR AND FORMALDEHYDE STERILIZATION INDICATOR
EP0060723A1 (en) * 1981-03-17 1982-09-22 Ekika Carbon Dioxide Co. Ltd. Indicator for detecting ethylene oxide
US4678640A (en) * 1981-03-17 1987-07-07 Ekika Carbon Dioxide Co., Ltd. Indicator for detecting residual ethylene oxide
EP1374918A1 (en) * 2002-06-24 2004-01-02 Illinois Tool Works Inc. Ethylene oxide sterilization indicator inks
US6800124B2 (en) 2002-06-24 2004-10-05 Illinois Tool Works Inc. Ethylene oxide sterilization process indicator inks
EP1466986A1 (en) * 2003-04-09 2004-10-13 Herbener, Heinz-Gerd Method for testing the efficacy of gassterilisation, especially sterilisation with ethyleneoxide

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