NA 041-03-10 GA
Joint working committee NHRS/NAA/NAGas: Safety and control devices for heating appliances and heat generating systems and for the gas distribution (SpA CEN/TC 58, WG 11, WG 13, WG 15 and ISO/TC 161, WG 3, WG 4, WG 5)

The Joint working committee NA 041-03-10 GA "Joint working committee NHRS/NAA/NAGas: Safety and control devices for heating appliances and heat generating systems and for the gas distribution (SpA CEN/TC 58, WG 11, WG 13, WG 15 and ISO/TC 161, WG 3, WG 4, WG 5)" of the DIN Standards Committee Heating and Ventilation Technology and their Safety is tasked to process - process generic standards and standardization projects (so-called horizontal standards) with respect to safety, construction, and performance requirements as well as tests of controls for heating applications and heat generating systems. - process standards and standardization projects with respect to safety, construction, and performance requirements as well as tests of electromechanical controls for heating applications and heat generating systems - international standards and projects in the fields of gas distribution and utilisation for pressures up to 100 bar The work programme of the NA 041-03-10 AA includes, among others, the following generic standardization projects: - General requirements for safety, construction, and performance requirements and tests; - Methods to determine safety integrity level (SIL) and performance level (PL); - the following controls, including their devices: • Automatic shut-off valves for gas burners and gas applications; • Automatic vent valves; • Pressure regulators for gas burners and gas applications; • Thermo-electric flame supervision device; • Pneumatic gas/air ratio controls for gas burners and gas applications; • Manual taps for gas applications; • Mechanical thermostats for gas applications; • Multifunctional controls for gas applications. In its field of expertise the NA 041-03-10 GA acts as the German mirror committee at the European and International standardization for the technical committees CEN/TC 58 as well as CEN/TC 58/WG 11, CEN/TC 58/WG 12 and CEN/TC 58/WG 15 and ISO/TC 161 as well as ISO/TC 161/WG 3, ISO/TC 161/WG 4 and ISO/TC 161/WG 5. The working committee NA 041-03-10 GA decides on the German position and nominates the German delegation for CEN/TC 58 and ISO/TC 161.