The GB/T 3186-1982 standard specifies the sampling method for Paints, varnishes and related products. Its main purpose is to ensure that the samples taken are representative in order to accurately reflect the actual mass of the Coating product. The standard applies to the sampling work of all Coating products, especially in inspection and quality control. For special products that do not apply the standard, sampling should be carried out according to the product description or the method agreed by both parties.