塑料 聚醚多元醇 第6部分:不饱和度的测定
Plastics-Polyether polyols-Part 6 :Determination of degree of unsaturation
Plastics-Polyether polyols-Part 6 :Determination of degree of unsaturation
Plastics-Aromatic isocyanates for use in the production of polyurethane Part 5:Determination of acidity
Plastics-Poly(vinyl alcohol)(PVAL)materials Part 1:Designation system and basis for specifications
Plastics-Polyether polyols Part 3 :Determination of hydroxyl number
Plastics-Polyamides-Part 1:Determination of viscosity number
Epoxide resins-Determination of total chlorine content
Epoxide resins-Determination of softening point-Ring and ball method
Determination of gelation time of epoxide resins
Epoxide resins-Determination of sodium ion
Plastics-Polyether polyols-Part 1 :Designation system