• SN EN 61779-1 : 2000

    Current The latest, up-to-date edition.

    ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 1: GENERAL REQUIREMENTS AND TEST METHODS

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    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

    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
    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
    6 Information for use
    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
    Annex ZA (normative) Normative references to international
                         publications with their corresponding
                         European publications

    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. This standard is supplemented by the following standards: IEC 61779-2, IEC 61779-3, IEC 61779-4 and IEC 61779-5.

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    Document Type Standard
    Publisher Swiss Standards
    Status Current
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