ISO 4045-1977 标准详情
- 标准号:ISO 4045-1977
- 中文标题:皮革-PH值测定
- 英文标题:leather-determination of ph
- 标准类别:国际标准化组织标准ISO
- 发布日期:1977-09-15
The principle consists in preparation of an aqueous extract from a test portion of the leather, and measurement of the pH of the extract, using a pH meter. The definition of a difference figure of an aqueous leather extract is given. Reagents, appara
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