This is a product standard specifically for polyvinyl chloride paste resins (also known as PVC paste resins), which details the performance requirements and test methods for such products. The standard covers the classification, appearance, multiple target properties, as well as the corresponding sampling, testing, inspection rules, and specifications for marking, packaging, transportation, and storage throughout the entire process. The main testing instruments involved include capillary viscometers for determining solution viscosity number and Brookfield viscometers for measuring standard paste viscosity. Additionally, the tests required by the standard may involve instruments such as high-temperature whiteness meters, grind gauges, standard sieves, gas chromatographs, and electronic analytical balances to comprehensively assess key quality indicators, including the number of impurity particles, thermal stability, fineness, and residual monomer content.