标准编号：ISO 6588-1:2021
中文名称：纸、纸板和纸浆 水提取物pH值的测定 第1部分：冷提取
英文名称：Paper, board and pulps — Determination of pH of aqueous extracts — Part 1: Cold extraction
发布日期：2021-11
标准范围
This document specifies a method for the determination of the pH-value defined by the electrolytes extractable by cold water from a sample of paper, board or pulp.
This document is applicable to all types of paper, board and pulp.
As the quantity of extractable ionic material approaches zero, as in the case of highly purified pulps, the precision of the method becomes poor because of the difficulties encountered in making pH measurements on water containing little electrolytic material.
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