"GB/T 2677.8-1994 Determination of acid-insoluble lignin content in papermaking raw materials" stipulates the determination method of acid-insoluble lignin content in papermaking raw materials. The standard clarifies the determination principle, instrument reagents, sample processing flow and calculation method, and separates acid-insoluble lignin through specific acid treatment raw materials. It provides a unified specification for accurately evaluating the content of acid-insoluble lignin in papermaking raw materials, and is an important basis for controlling the mass of raw materials and guiding the papermaking 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 | Y30 | ICS | |
| Release Date | 1994-09-24 00:00:00 | Implementation Date | 1995-03-01 00:00:00 |