ISA TR12.24.01 : 1998

Withdrawn

Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS CLASSIFIED AS CLASS 1, ZONE 0, ZONE 1, OR ZONE 2

Available format(s): Hardcopy

Withdrawn date: 05-01-2015

Language(s): English

Published date: 01-01-1998

Publisher: International Society of Automation

Table of Contents - (Show below) - (Hide below)

Foreword
1 General
  1.1 Scope
  1.2 References
  1.3 Purpose
2 Definitions and terms
  2.10 Explosive limits
3 Safety and area classification
  3.1 Safety principles
  3.2 Area classification objective
4 Area classification procedure
  4.1 General
  4.2 Sources of release
  4.3 Type of Zone
  4.4 Extent of Zone
  4.5 Extent of zone - General comments
5 Ventilation
  5.1 General
  5.2 Main types of ventilation
  5.3 Degree of ventilation
  5.4 Availability of ventilation
6 Documentation
  6.1 General
  6.2 Drawings, data sheets and tables
Annex A (Informative) Examples of sources of release
      A.1 Process plants and facilities
      A.2 Openings
Annex B (Informative) ventilation
      B.1 Natural ventilation
      B.2 Artificial ventilation
      B.3 Degree of ventilation
      B.4 Assessment of degree of ventilation and its
          influence on the hazardous area
      B.5 Availability of ventilation
      B.6 Practical guide
      B.7 Calculations to ascertain the degree of ventilation
Annex C (Informative) Examples of hazardous area classification
Annex D (Informative) Use of combustible gas detection equipment
Annex E (Informative) United States major deviations

Abstract - (Show below) - (Hide below)

Describes the classification of hazardous areas where flammable gas or vapor risks may arise, in order to permit the proper selection and installation of apparatus for use in such hazardous areas.

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Committee	SP12
Development Note	Supersedes and Renumbers ISA RP12.24.01. (06/2014)
Document Type	Standard
ISBN
Pages
Published
Publisher	International Society of Automation
Status	Withdrawn
Supersedes	ISA RP12.24.01 : 1998

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

ISA 12.13.01 : 2003	PERFORMANCE REQUIREMENTS FOR COMBUSTIBLE GAS DETECTORS
ISA TR12.13.03 : 2009	GUIDE FOR COMBUSTIBLE GAS DETECTION AS A METHOD OF PROTECTION
ISA 60079-29-2 : 2012	EXPLOSIVE ATMOSPHERES - PART 29-2: GAS DETECTORS - SELECTION, INSTALLATION, USE AND MAINTENANCE OF DETECTORS FOR FLAMMABLE GASES AND OXYGEN
API 14F : 2008 : R2013	DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
IEEE 45.1-2017	IEEE Recommended Practice for Electrical Installations on Shipboard--Design
API 14F:2008	DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
API 14FZ : 2013	RECOMMENDED PRACTICE FOR DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, ZONE 0, ZONE 1, AND ZONE 2 LOCATIONS
API 14F REDLINE : 2008	DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
API 500 : 2012	RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT PETROLEUM FACILITIES CLASSIFIED AS CLASS 1, DIVISION 1 AND DIVISION 2

Standards Referencing This Book - (Show below) - (Hide below)

NFPA 70 : 2017	NATIONAL ELECTRICAL CODE
ISA 12.13-1 : 1995	PERFORMANCE REQUIREMENTS, COMBUSTIBLE GAS DETECTORS
IP 15 : 2015	PETROLEUM PRODUCTS - DETERMINATION OF POUR POINT
NFPA 30 : 2018	FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE
ISA RP12.13.02 : 2003	INSTALLATION, OPERATION, AND MAINTENANCE OF COMBUSTIBLE GAS DETECTION INSTRUMENTS
NFPA 325M : 1991	FIRE HAZARD PROPERTIES OF FLAMMABLE LIQUIDS, GASES, AND VOLATILE SOLIDS
ASTM E 659 : 2015 : REDLINE	Standard Test Method for Autoignition Temperature of Chemicals
NFPA 497 : 2017	CLASSIFICATION OF FLAMMABLE LIQUIDS, GASES, OR VAPORS AND OF HAZARDOUS (CLASSIFIED) LOCATIONS FOR ELECTRICAL INSTALLATIONS IN CHEMICAL PROCESS AREAS

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