EN 125:2010+A1:2015

European 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 AA (informative) - Types of flame supervision devices
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

This European Standard specifies the safety, construction and performance requirements for thermoelectric flame supervision devices, energized by a thermocouple intended for use with gas burners, gas appliances and similar use, hereafter referred to as "controls". This European Standard is applicable to controls with declared maximum inlet pressures up to and including 500 kPa (5 bar) of nominal connection sizes up to and including DN 50 for use with one or more fuel gases in accordance with EN 437.This European Standard is not applicable to:a)the thermocouple;b)controls which use auxiliary energy (e.g. electrical energy supplied externally).NOTEProvisions for final product inspection and testing by the manufacturer are not specified.