DIN EN ISO 2078:2022-08
含有易燃制冷剂的制冷、空调和热泵设备的运行、保养、维护、修理和退役 补充现有标准 德文版 CEN/TS 17607:2021
Operation, servicing, maintenance, repair and decommissioning of refrigeration, air conditioning and heat pump equipment containing flammable refrigerants, complementing existing standards; German version CEN/TS 17607:2021