"GB/T 747-2003 Pulp, Determination of acid-insoluble lignin" specifies the determination method of acid-insoluble lignin in pulp. The standard covers test principles, equipment, sample preparation and operation procedures. By treating pulp samples with acid, the content of insoluble lignin is separated and determined. Provide scientific and unified testing standards for evaluating pulp chemical composition, controlling pulp mass and optimizing pulping process.
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 | Y31 | ICS | 85.040 |
| Release Date | 2003-08-25 00:00:00 | Implementation Date | 2003-12-01 00:00:00 |