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  • ISA S12.4 : 1970

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    INSTRUMENT PURGING FOR REDUCTION OF HAZARDOUS AREA CLASSIFICATION

    Available format(s): 

    Superseded date:  15-01-1996

    Language(s): 

    Published date:  12-01-2013

    Publisher:  International Society of Automation

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    Abstract - (Show below) - (Hide below)

    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.

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    Document Type Standard
    Publisher International Society of Automation
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    API 500B : 88 ERRATA RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT DRILLING RIGS & PRODUCTION FACILITIES ON LAND & ON MARINE FIXED & MOBILE PLATFORMS
    API 500 RUSSIAN :1997 RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS 1, DIVISION 1 AND DIVISION 2
    API 500 RUSSIAN : 1997 : R2002 RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS 1, DIVISION 1 AND DIVISION 2
    ISA RP92.04.02-2 : 1996 INSTALLATION, OPERATION, AND MAINTENANCE OF INSTRUMENTS USED TO DETECT OXYGEN-DEFICIENT/OXYGEN-ENRICHED ATMOSPHERES
    ISA 92.04.01-1 : 2007 PERFORMANCE REQUIREMENTS FOR INSTRUMENTS USED TO DETECT OXYGEN-DEFICIENT/OXYGEN-ENRICHED ATMOSPHERES
    API 552 : 1994 TRANSMISSION SYSTEMS
    API 670 : 2014 MACHINERY PROTECTION SYSTEMS
    API 540 : 1999 : R2006 ELECTRICAL INSTALLATIONS IN PETROLEUM PROCESSING PLANTS
    API 505 : 1997 RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS I, ZONE 0, ZONE 1, AND ZONE 2
    API 540:1999 ELECTRICAL INSTALLATIONS IN PETROLEUM PROCESSING PLANTS
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