GB/T 41439-2022 "Paper, board and pulps - Determination of pH of saline extracts" is applicable to various types of paper, board, and pulps. It specifies the use of saline solutions of specific concentrations as extraction media, and outlines procedures such as sample immersion and extract preparation for pH determination. The standard defines technical requirements for sample preparation, extraction conditions, instrument calibration, and testing operations, standardizes the presentation of results, and ensures the accuracy of the determination outcomes.
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;85.060 |
| Release Date | 2022-04-15 00:00:00 | Implementation Date | 2022-11-01 00:00:00 |