GB/T 22902-2025 in English

This standard specifies the method for determining acetone-soluble substances in pulp. It outlines the necessary apparatus, reagents, and procedures for conducting the test, ensuring consistency and accuracy in the measurement process. The scope of the standard includes various types of pulp commonly used in the papermaking industry. The method involves the use of acetone as a solvent and provides detailed instructions for sample preparation, extraction, and quantification. It also includes guidelines for reporting the results, ensuring that data obtained from different laboratories are comparable. The standard is applicable to both analytical and routine testing purposes, facilitating quality control and product evaluation in the relevant industry sectors. The implementation of this standard aims to enhance the reliability of test results and support the development of standardized testing practices within the field.