GB/T 22902-2008 "Pulp—Determination of acetone-soluble matter" specifies a method for determining acetone-soluble matter in pulp, applicable to all types of pulp. The pulp sample is placed in a Soxhlet extractor and continuously extracted with acetone for 3–4 hours. After evaporating the solvent, the residue is dried and weighed. The content of soluble matter is calculated based on the mass ratio of the residue to the absolutely dry pulp sample. The standard specifies extraction conditions, safety operations, and result presentation requirements, providing data for evaluating pulp purity.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Y30 | ICS | 85.010 |
| Release Date | 2008-12-30 00:00:00 | Implementation Date | 2009-09-01 00:00:00 |