Rubber products—Determination of toxic and harmful substances—Part 3: Resorcinol

This standard specifies a method for determining resorcinol in rubber products and applies to the testing of toxic and harmful substances in rubber and rubber-product-related materials. Relevant manufacturers, testing bodies, and product quality control entities should conduct sample preparation, resorcinol extraction, instrumental analysis, and result calculation in accordance with the prescribed method, and ensure that the testing process meets the method requirements. As a recommended national standard, it provides a unified technical basis for determining resorcinol content in rubber products, quality assessment, and hazardous substance control.