BSI BS EN ISO 15528 "Raw material sampling for Paints, varnishes and varnishes" specifies procedures and methods for obtaining representative samples from paints, varnishes and their raw materials. The standard applies to sampling operations in the production of coatings, quality control and performance testing to ensure that the samples taken accurately reflect the overall product characteristics. The standard details sampling tools, sampling conditions, sample storage and handling requirements, and provides specific guidance for different types of raw materials such as liquids, powders or viscous substances.