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GB/T 3681-2011
Plastics methods of exposure to direct weathering, to weathering using glass-filtered daylight, and to intensified weathering by daylight using Fresnel mirrors
GB/T 19277.1-2011
Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1: General method
GB/T 25278-2010
Plastics - Determination of the fluidity of plastics using capillary and slit-die rheometers
GB/T 1632.3-2010
Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometer - part3: Polyethylenes and polypropylenes
GB/T 12008.6-2010
Plastics - Polyether polyols - Part 6: Determination of degree of unsaturation
GB/T 1033.3-2010
Plastics - Methods for determining the density of non-cellular plastics - Part 3: Gas pyknometer method
GB/T 1033.2-2010
Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method
GB 16413-2009
Inspecting specification of glass fiber reinforced plastic product safety property for coal mining
GB/T 24282-2009
Plastics - Determination of xylene-soluble matter in polypropylene
GB/T 24148.6-2009
Plastics - Unsaturated-polyester resins - Part 6: Determination of reactivity at 130℃
GB/T 24148.4-2009
Plastics - Unsaturated polyester resin - Part 4: Determination of viscosity
GB/T 24148.2-2009
Plastics - Unsaturated-polyester resins (UP-R) - Part 2: Preparation of test specimens and determination of properties
GB/T 2406.2-2009
Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test
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 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 24148.1-2009
Plastics - Unsaturated-polyester resins (UP-R) - Part 1: Designation system
GB/T 12001.2-2008
Plastics - Unplasticized poly (vinyl chloride) (PVC-U) moulding and extruded materials - Part 2: Preparation of test specimens and determination of properties
GB/T 12001.1-2008
Plastics - Unplasticized poly (vinyl chloride) (PVC-U) moulding and extruded materials - Part 1: Designation system and basis for specifications
GB/T 5478-2008
Plastics - Test method for wear by rolling
GB/T 9639.1-2008
Plastics film and sheeting - Determination of impact resistance by the free-falling dart methord - Part 1: Staircase methords