GB/T 22904-2023 "Paper, board and pulps—Determination of total chlorine and organic chlorine" is applicable to various types of paper, board, and pulps. It specifies two determination methods: microcoulometry and the combustion flask-ion chromatography method, with a defined method detection limit of 20 mg/kg. The standard details technical aspects such as sample pretreatment, testing procedures, and result calculation, providing a unified testing basis for the control of total chlorine and organic chlorine content.
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 | 2023-09-07 00:00:00 | Implementation Date | 2024-04-01 00:00:00 |