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ISA S12.4 : 1970

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

INSTRUMENT PURGING FOR REDUCTION OF HAZARDOUS AREA CLASSIFICATION

Superseded date

15-01-1996

Superseded by

ISA RP12.4 : 1996

Published date

12-01-2013

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Covers a technique for reducing the hazard classification by the continuous addition of air or an inert gas within a general purpose enclosure. Refers only to hazards created by gases or vapors and is concerned only with those system design criteria related to electrical ignition of a hazardous gas or vapor.

DocumentType
Standard
PublisherName
International Society of Automation
Status
Superseded
SupersededBy

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