ASTM D778-1997(2002) 标准详情
- 标准号:ASTM D778-1997(2002)
- 中文标题:测定纸萃取物中氢离子浓度(pH)的标准试验方法(热萃取和冷萃取法)
- 英文标题:Standard Test Methods for Hydrogen Ion Concentration (pH) of Paper Extracts (Hot- Extraction and Cold-Extraction Procedures)
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1997
The acidity or alkalinity of a paper sample extract is important because of the effect of paper acidity or paper alkalinity on the permanence of the paper. Although acidity or alkalinity may be determined by titration the pH is often more indicative
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