T/CECS 10099-2020 Sunwall heat absorber panel

GB/T 308.1-2013 Rolling bearings—Balls—Part 1:Steel balls GB/T 1720-2020 Circle-drawing test of coating films GB/T 1771-1991 Paints and varnishes—Determination of resistance to neutral salt spray GB/T 1771-2007 Paints and varnishes—Determination of resistance to neutral salt spray(fog) GB/T 1800.1-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1:Basis of tolerances, deviations and fits 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 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 6739-1996 Determination of film hardness by pencil test GB/T 6739-2006 Paints and varnishes—Determination of film hardness by pencil test GB/T 6739-2022 Paints and varnishes—Determination of film hardness by pencil test GB/T 12936-2007 Solar energy—Thermal application—Terminology GB/T 12936.1-1991 Solar energy—Thermal applications—Terminology part 1 GB/T 12936.2-1991 Solar energy—Thermal applications—Terminology Part 2 GB/T 13448-1992 Test methods for colour-coated steel plates and strips GB/T 13448-2006 Test methods for prepainted steel sheet GB/T 13448-2019 Test methods for prepainted steel sheet and strip GB/T 15596-1995 Plastics—Determination of changes in Color and variations in properties after exposure to daylight under glass, natural weathering or artificial light GB/T 15596-2009 Plastics—Determination of changes in colour and variations in properties after exposure to daylight under glass,natural weathering or laboratory light sources GB/T 15596-2021 Plastics—Determination of changes in colour and variations in properties after exposure to glass-filtered solar radiation, natural weathering or laboratory radiation sources GB/T 25965-2010 Test methods of normal emittance of materials and hemispherical emittance of all-glass evacuated collector tubes GB/T 25968-2010 Test methods of solar transmittance and solar absorptance of materials by spectrophotometer