NY/T 759-2003 Specification for pressure-resistant domestic solar water heater

GB 4706.1-1998 GB 5013.2-1997 GB/T 12467.1-1998 Quality requirements for welding—Fusion welding of metallic materials—Part 1:Guidelines for selection and use GB/T 12467.2-1998 Quality requirements for welding—Fusion welding of metallic materials—Part 2:Comprehensive quality requirements GB/T 12467.3-1998 Quality requirements for welding—Fusion welding of metallic materials—Part 3:Standards quality requirements GB/T 12467.4-1998 Quality requirements for welding—Fusion welding of metallic materials—Part 4:Elementary quality requirements GB/T 12915-1991 Test methods to determine the thermal performance of domestic solar water heaters GB/T 12936.2-1991 Solar energy—Thermal applications—Terminology Part 2 GB/T 17049-1997 All-glass evacuated solar collector tubes NY/T 343-1998 Technical conditions of household solar water heater NY/T 513-2002 Electric auxiliary thermal source for domestic solar water heaters GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 1720-2020 Circle-drawing test of coating films GB/T 1740-2007 Determination of resistance to heat and humidity of paint films GB/T 1865-1997 Paints and varnishes—Artificial weathering and exposure to artificial radiation—Filtered xenon-arc radiation GB/T 1865-2009 Paints and varnishes—Artificial weathering and exposure to artificial radiation—Exposure to filtered xenon-arc radiation GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 191-2025 Graphical symbols marking for handling and storage of packages