GB/T 21990-2008
ActivePolyvinyl chloride (PVC) pastes - Determination of fineness of grind
聚氯乙烯（PVC）糊 刮板细度的测定
Application Summary AI generated
This standard specifies a method for determining the fineness of grind in polyvinyl chloride (PVC) pastes using a grindometer (scraper fineness gauge). It is applied in the plastics industry for quality control during the production of PVC plastisols, ensuring that the particle size of dispersed solids meets requirements for applications such as coatings, sealants, and artificial leather. The test is critical for evaluating processing behavior and final product surface smoothness.
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