This standard specifies the test method for the determination of the content of holocellulose in papermaking raw materials, which is applicable to various wood and non-wood plant fiber raw materials. Holocellulose refers to the total amount of hemicellulose and cellulose retained after the lignin is removed. The remaining holocellulose content is quantitatively determined by sodium chlorate treatment of samples that have removed Resin. This standard provides a scientific determination method for the analysis of raw materials in the papermaking industry to ensure the conformity and Reliability of pulp quality.