Requirements and test methods for devices energized by a thermocouple. Applies to devices of nominal connection size up to DN 50 for use in the 1st, 2nd or 3rd family gases.
BS EN 125:1991 history
2022BS EN 125:2022 Flame supervision devices for gas burning appliances. Thermoelectric flame supervision devices
1970BS EN 125:2010+A1:2015 Non-Active Surgical Implants - Joint Replacement Implants - Specific Requirements for Knee Joint Replacement Implants Ratified European Text
2010BS EN 125:2010 Flame supervision devices for gas burning appliances - Thermoelectric flame supervision devices
1991BS EN 125:1991 Specification for flame supervision devices for gas-burning appliances - Thermo-electric types