GB/T 38727-2020 Biodegradable plastic films and bags for express logistics transportation and delivery

GB/T 1040.1-2018 Plastics—Determination of tensile properties—Part 1:General principles GB/T 1040.3-2006 Plastics—Determination of tensile properties—Part 3:Test conditions for films and sheets GB/T 9345.1-2008 Plastics—Determination of ash—Part 1:General methods GB/T 9639.1-2008 Plastics film and sheeting—Determination of impact resistance by the free-falling dart methord—Part 1:Staircase methord GB/T 10004-2008 Plastic laminated films and pouches for packaging—Dry lamination and extrusion lamination GB/T 16288-2008 Marking of plastics products GB/T 16606.3-2018 Packings for express service—Part 3:Packing bag GB/T 21302-2007 General rules of laminated films and pouches for packaging GB/T 1041-2008 Plastics—Detemination of compressive properties GB/T 2410-1980 Transparent plastics—Transmissivity and haze test GB/T 2410-2008 Determination of the luminous transmittance and haze of transparent plastics GB/T 6672-2001 Plastics film and sheeting—Determination of thickness by mechanical scanning GB/T 8809-2015 Pendulum impact resistance of plastic film GB/T 15337-1994 General rules for atomic absorption spectrometric analysis GB/T 15337-2008 General rules for atomic absorption spectrometric analysis GB/T 19276.1-2003 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium—Method by measuring the oxygen demand in a closed respirometer GB/T 19276.2-2003 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium—Method by analysis of evolved carbon dioxide GB/T 19277.1-2011 Determination of the ultimate aerobic biodegradability of plastic materials under conctrolled composting conditions—Method by analysis of evolved cabon dioxide—Part 1:General method GB/T 19277.2-2013 Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions—Method by analysis of evolved carbon dioxide—Part 2:Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test GB/T 34848-2017 Determination of shrinkage character for heat-shrinkable films GB/T 35773-2017 Assessment for odor of packaging materials and products QB/T 2358-1998 Plastic film packaging bag heat seal strength testing method YZ/T 0166-2018 "Technical Requirements for Packaging Filling Materials for Mail Parcels" QB/T 1130-1991 Test Method for the Tear Strength of Plastic at Right Angles GB/T 19277.1-2025 Determination of the ultimate aerobic biodegradability of plastic materials under conctrolled composting conditions—Method by analysis of evolved cabon dioxide—Part 1:General method GB/T 19276.2-2026 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium—Part 2:Method by analysis of evolved carbon dioxide GB/T 19276.1-2026 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium—Part 1:Method by measuring the oxygen demand in a closed respirometer