GB/T 7979-2020
ActivePulp—Determination of dichloromethane soluble matter
纸浆 二氯甲烷抽出物的测定
Application Summary AI generated
This standard specifies a method for determining the amount of dichloromethane-soluble matter in pulp, which includes resins, fatty acids, and other organic extractives. It is applied in the pulp and paper industry for quality control and raw material evaluation, particularly when assessing the cleanliness and potential for pitch deposition in papermaking processes. The test is relevant for manufacturers and laboratories analyzing chemical pulp, mechanical pulp, or recycled pulp.
Related Standards
QB/T 2598-2003
Determination of fiber fibrillation for papermaking
QB/T 2597-2003
Determination of fiber length for papermaking (raster method)
GB/T 747-2003
Pulps--Determination of acid-insoluble lignin
GB/T 743-2003
Pulps--Determination of ether solubles
GB/T 745-2003
Pulps--Determination of pentosan content
GB/T 740-2003
Pulps--Sampling for testing
GB/T 3332-2004
Pulps--Determination of beatingdegree(Schopper-Riegler method)
GB/T 5399-2004
Pulps--Determination of stock concentration
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.