GB/T 17643-2025 Geosynthetics—Polyethylene geomembrane

GB/T 17643-2011 Geosynthetics—Polyethylene geomembrane

GB/T 1033.2-2010 Plastics—Methods for determining the density of non-cellular plastics—Part 2:Density gradient column method GB/T 1037-2021 Test method for water vapor transmission of plastic film and sheet—Desiccant method and water method GB/T 1040.3-2006 Plastics—Determination of tensile properties—Part 3:Test conditions for films and sheets GB/T 2035-1996 Terms and definitions for plastics GB/T 2035-2008 Terms and definitions for plastics GB/T 2035-2024 Plastics—Vocabulary GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 5470-1985 Test method for brittleness temperature of plastics by impact GB/T 5470-2008 Plastics—Determination of the brittleness temperature by impact GB/T 6672-2001 Plastics film and sheeting—Determination of thickness by mechanical scanning GB/T 6673-2001 Determination of length and width of plastics film and sheeting GB/T 7141-1992 Plastics—Methods of exposure to thermal air GB/T 7141-2008 Plastics—Methods of heat aging GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12027-2004 Plastics—Film and sheeting—Determination of dimensional change on heating GB/T 13021-1991 Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis GB/T 13021-2023 Polyolefin pipes and fittings—Determination of carbon black content—Test method of alcination and pyrolysis GB/T 16422.3-1997 Plastics—Methods of exposure to laboratory light sources—Part 3:Fluorescent UV lamps GB/T 16422.3-2014 Plastics—Methods of exposure to laboratory light sources—Part 3:Fluorescent UV lamps GB/T 16422.3-2022 Plastics—Methods of exposure to laboratory light sources—Part 3:Fluorescent UV lamps GB/T 19466.6-2009 Plastics—Differential scanning calorimetry(DSC)—Part 6:Determination of oxidation induction time(isothermal OIT)and oxidation induction temperature(dynamic OIT) GB/T 19978-2005 Geotextiles and geotextile-related products—Determination of the puncture resistance GB/T 41794-2022 Geosynthetics—Evaluation of stress crack resistance of polyolefin geomembranes—Notched constant tensile load method QB/T 1130-1991 SH/T 1801-2016 Thin film used in geo-membrane production is made from medium density polyethylene resin