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    I.S. EN 61779-1:2003

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 1: GENERAL REQUIREMENTS AND TEST METHODS

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-01-2008

    Language(s):  English

    Published date:  01-01-2003

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    FOREWORD
    INTRODUCTION
    1 General
      1.1 Scope
      1.2 Normative references
    2 Definitions
      2.1 Gas properties
      2.2 Types of instruments
      2.3 Sensors
      2.4 Supply of gas to instrument
      2.5 Signals and alarms
      2.6 Times
      2.7 Miscellaneous
    3 General requirements
      3.1 Introduction
      3.2 Construction
      3.3 Labelling and marking
      3.4 Instruction manual
      3.5 Diffusion sensors
    4 Test methods
      4.1 Introduction
      4.2 General requirements for tests
      4.3 Normal conditions for tests
      4.4 Test methods
    5 Field calibration kit
    Annex A (normative) Flammability limits (i.e. LFL and UFL)
            of some flammable gases and vapours
    Annex B (informative) Determination of time of response
    Annex C (informative) Bibliography

    Abstract - (Show below) - (Hide below)

    Gives general requirements for the construction and testing and describes the test methods applicable to portable, transportable and fixed apparatus for detecting and measuring flammable gas or vapour concentrations with air. The apparatus, or parts of apparatus are meant for use in potentially explosive atmospheres and in mines susceptible to firedamp.

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    Development Note Supersedes I.S. EN 50054 (12/2003)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By
    Supersedes

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

    IEC 60050-351:2013 International Electrotechnical Vocabulary (IEV) - Part 351: Control technology
    IEC 60079-1:2014 RLV Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
    EN 50270:2015 Electromagnetic compatibility - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen
    IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
    EN 50058:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % (v/v) gas
    EN 61000-4-1:2007 Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series
    ISO 2738:1999 Sintered metal materials, excluding hardmetals — Permeable sintered metal materials — Determination of density, oil content and open porosity
    EN 50039:1980 Electrical apparatus for potentially explosive atmospheres - Intrinsically safe electrical systems 'i'
    IEC 61000-4-4 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST
    IEC 61000-4-1:2006 Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series
    IEC TR 60079-20:1996 Electrical apparatus for explosive gas atmospheres - Part 20: Data for flammable gases and vapours, relating to the use of electrical apparatus
    IEC 60079-19:2010+AMD1:2015 CSV Explosive atmospheres - Part 19: Equipment repair, overhaul and reclamation
    EN 50020:2002 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
    ISO 4003:1977 Permeable sintered metal materials — Determination of bubble test pore size
    IEC 60079-18:2014 RLV Explosive atmospheres - Part 18: Equipment protection by encapsulation “m”
    IEC 61000-4-4:2012 RLV Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement techniques - Electrical fast transient/burst immunity test
    EN 50055:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 5 % (v/v) methane in air
    EN 50017:1998 Electrical apparatus for potentially explosive atmospheres - Powder filling "q"
    EN 50019:2000/corrigendum Apr. 2003 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - INCREASED SAFETY "E"
    EN 50018 : 2000 AMD 1 2002 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - FLAMEPROOF ENCLOSURE "D"
    IEC 60079-5:2015 RLV Explosive atmospheres - Part 5: Equipment protection by powder filling "q"
    EN 50057:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indicating up to 100 % lower explosive limit
    ISO 6147:1979 Gas analysis Preparation of calibration gas mixtures Saturation method
    EN 61000-4-3 : 2006 AMD 2 2010 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-3: TESTING AND MEASUREMENT TECHNIQUES - RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD IMMUNITY TEST
    IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
    ISO 4022:1987 Permeable sintered metal materials — Determination of fluid permeability
    ISO 6142:2001 Gas analysis Preparation of calibration gas mixtures Gravimetric method
    IEC 61000-4-3:2006+AMD1:2007+AMD2:2010 CSV Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test
    IEC 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
    IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
    IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
    EN 61000-4-4:2012 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST (IEC 61000-4-4:2012)
    EN 50073:1999 Guide for selection, installation, use and maintenance of apparatus for the detection and measurement of combustible gases or oxygen
    ISO 6145-4:2004 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 4: Continuous syringe injection method
    ISO 6145-3:1986 Gas analysis Preparation of calibration gas mixtures Dynamic volumetric methods Part 3: Periodic injections into a flowing gas stream
    EN 50015:1998 Electrical apparatus for potentially explosive atmospheres - Oil immersion "o"
    ANSI S12.13 : 2002 EVALUATING THE EFFECTIVENESS OF HEARING CONSERVATION PROGRAMS THROUGH AUDIOMETRIC DATA BASE ANALYSIS
    EN 50056:1998 Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group I apparatus indicating up to 100 % (v/v) methane in air
    BS 5345-1:1989 Code of practice for selection, installation and maintenance of electrical apparatus for use in potentially explosive atmospheres (other than mining applications or explosive processing and manufacture) General recommendations
    EN 50016:2002 Electrical apparatus for potentially explosive atmospheres - Pressurized apparatus "p"
    ISO 6145-1:2003 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 1: Methods of calibration
    EN 50028:1987 Electrical apparatus for potentially explosive atmospheres - Encapsulation 'm'
    EN 50014:1997/A2:1999 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS
    ISO 6145-6:2017 Gas analysis — Preparation of calibration gas mixtures using dynamic methods — Part 6: Critical flow orifices
    IEC 60079-15:2010 Explosive atmospheres - Part 15: Equipment protection by type of protection "n"
    IEC 60079-13:2017 Explosive atmospheres - Part 13: Equipment protection by pressurized room "p" and artificially ventilated room "v"
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