T/NAHIEM 99-2023 Classification standard of household and similar water softeners

GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB 4706.1-1998 Safety of household and similar electrical appliances Part 1:General requirements GB 4706.1-2005 Household and similar electrical appliances—Safety—Part 1:General requirements GB/T 4706.1-2024 Safety of household and similar electrical appliances—Part 1:General requirements GB/T 5750-1985 Standard examination method for drinking water GB/T 5750.1-2006 Standard examination methods for drinking water—General principles GB/T 5750.1-2023 Standard examination methods for drinking water—Part 1:General principles GB/T 5750.2-2006 Standard examination methods for drinking water—Collection and preservation of water samples GB/T 5750.2-2023 Standard examination methods for drinking water—Part 2:Collection and preservation of water samples GB/T 5750.3-2006 Standard examination methods for drinking water—Water analysis quality control GB/T 5750.3-2023 Standard examination methods for drinking water—Part 3:Water analysis quality control GB/T 5750.4-2006 Standard examination methods for drinking water—Organoleptic and physical parameters GB/T 5750.4-2023 Standard examination methods for drinking water—Part 4:Organoleptic and physical indices GB/T 5750.5-2006 Standard examination methods for drinking water—Nonmetal parameters GB/T 5750.5-2023 Standard examination methods for drinking water—Part 5:Inorganic nonmetallic indices GB/T 5750.6-2006 Standard examination methods for drinking water— Metal parameters GB/T 5750.6-2023 Standard examination methods for drinking water—Part 6:Metal and metalloid indices GB/T 5750.7-2006 Standard examination methods for drinking water—Aggregate organic parameters GB/T 5750.7-2023 Standard examination methods for drinking water—Part 7:Aggregate organic indices GB/T 5750.8-2006 Standard examination methods for drinking water—Organic parameters GB/T 5750.8-2023 Standard examination methods for drinking water—Part 8:Organic indices GB/T 5750.9-2006 Standard examination methods for drinking water—Pesticides parameters GB/T 5750.9-2023 Standard examination methods for drinking water—Part 9:Pesticides indices GB/T 5750.10-2006 Standard examination methods for drinking water—Disinfection by-products parameters GB/T 5750.10-2023 Standard examination methods for drinking water—Part 10:Disinfection by-products indices GB/T 5750.11-2006 Standard examination methods for drinking water—Disinfectants parameters GB/T 5750.11-2023 Standard examination methods for drinking water—Part 11:Disinfectants indices GB/T 5750.12-2006 Standard examination methods for drinking water—Microbiological parameters GB/T 5750.12-2023 Standard examination methods for drinking water—Part 12:Microbiological indices GB/T 5750.13-2006 Standard examination methods for drinking water—Radiological parameters GB/T 5750.13-2023 Standard examination methods for drinking water—Part 13:Radiological indices GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 30307-2023 Household and similar drinking water treatment units QB/T 4698-2014 Household and similar soft water machines GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system