GB/T 12009.3-2009
ActivePlastics - Polymethylene polyphenyl isocyanate - Part 3: Determination of viscosity
塑料 多亚甲基多苯基异氰酸酯 第3部分：黏度的测定
Application Summary AI generated
This standard specifies a method for determining the viscosity of polymethylene polyphenyl isocyanate (commonly known as polymeric MDI) used in the production of polyurethane materials. It is applied in the quality control and testing of raw materials for rigid polyurethane foams, adhesives, and coatings, ensuring consistent processing behavior and end-product performance.
Related Standards
GB/T 7141-2008
Plastics—Methods of heat aging
GB/T 9350-2003
Plastics--Homopolymer andcopolymer resins of vinyl chloride--Determination of pH of aqueous extract
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 12004.4-2003
Polyvinyl chloride paste--Determination of apparent viscosity by the Brookfield test method
GB/T 19275-2003
Evaluation of the potential biodegradability and disintegration of plastic materials by the action of the specific microorganisms
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 12000-2003
Determination of the effects of exposure to damp heat，water spray and salt mist for plastics
GB/T 17931-2003
Poly(ethylene terephthalate)(PET)resin for bottles
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.