GB/T 1546-2018 "Pulp—Determination of Kappa number" is applicable to various types of chemical pulps and is not suitable for mechanical pulps and high-yield pulps. It specifies the method of determining the consumption of potassium permanganate under specific conditions to calculate the Kappa number, which characterizes the residual lignin content in the pulp. The standard details the preparation of reagents, sample handling, titration procedures, and result calculation methods, and standardizes the blank test and correction steps to ensure the accuracy of Kappa number determination.
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 | 85.040 |
| Release Date | 2018-12-28 00:00:00 | Implementation Date | 2019-07-01 00:00:00 |