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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 16577-2010
Plastics - Tetrahydroxy polyether polyols
GB/T 16576-2010
Plastics - Trihydroxy polyether polyols
GB/T 15594-2010
Plastics - Octahydroxy polyether polyols
GB/T 12008.2-2010
Plastics - Polyether polyols - Part 2：Specification
GB/T 15597.2-2010
Plastics - Poly(methyl methacrylate)(PMMA)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
GB/T 25278-2010
Plastics - Determination of the fluidity of plastics using capillary and slit-die rheometers
GB/T 25277-2010
Plastics - Determination of phenolic antioxidants and erucamide slip additives in polypropylene homopolymer formulations - liquid chromatography (LC)
GB/T 1632.3-2010
Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometer - part3: Polyethylenes and polypropylenes
GB/T 12008.7-2010
Plastics - Polyether polyols - Part 7：Determination of viscosity
GB/T 12008.6-2010
Plastics - Polyether polyols - Part 6: Determination of degree of unsaturation
GB/T 12008.5-2010
Plastics - Polyether polyols - Part 5：Determination of acidity as acid number
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/T 12010.3-2010
Plastic - Poly(vinyl alcohol)(PVAL)materials - Part 3: Specification
GB/T 3402.2-2010
Plastics - Homopolymer and copolymer resins of vinyl chloride - Part 2: Preparation of test samples and determination of properties
GB/T 12010.8-2010
Plastic - polyvinyl alcohol（PVAL）materials - Part 8: Determination for transparency
GB/T 12010.7-2010
Plastics - polyvinyl alcohol （PVAL）materials - Part 7: Determination for sodium hydroxide contents
GB/T 12010.6-2010
Plastic - polyvinyl alcohol（PVAL）materials - Part 6: Determination for particle size