• UNI EN 257 : 2010

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    MECHANICAL THERMOSTATS FOR GAS-BURNING APPLIANCES

    Available format(s): 

    Superseded date:  07-12-2022

    Language(s): 

    Published date:  09-09-2010

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Classification
    5 Units of measurement and test conditions
    6 Construction requirements
    7 Performance
    8 EMC/Electrical requirements
    9 Marking, installation and operating instructions
    Annex A (informative) - Gas connections in common use in
      the various countries
    Annex B (informative) - Leak-tightness test - volumetric
      method
    Annex C (informative) - Leak-tightness test - pressure loss
      method
    Annex D (normative) - Conversion of pressure loss into leakage
      rate
    Annex E (normative) - Electrical/electronic component fault
      modes
    Annex F (normative) - Additional requirements for safety
      accessories and pressure accessories as defined in EU
      Directive 97/23/EC
    Annex G (normative) - Materials for pressurized parts
    Annex H (informative) - Additional materials for pressurized
      parts
    Annex I (normative) - Requirements for controls used in DC
      supplied gas burners and gas burning appliances
    Annex ZA (informative) - Relationship between this European
      Standard and the Essential Requirements of EU Directive
      2009/142/EC relating to appliances burning gaseous fuels
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the safety, construction and performance requirements for mechanical thermostats intended for use with gas appliances and similar use, hereafter referred to as 'thermostats'.

    General Product Information - (Show below) - (Hide below)

    Committee CT 114
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Superseded
    Superseded By
    Supersedes

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

    EN 13611:2015/AC:2016 SAFETY AND CONTROL DEVICES FOR BURNERS AND APPLIANCES BURNING GASEOUS AND/OR LIQUID FUELS - GENERAL REQUIREMENTS
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