Photography — Processing chemicals — Specifications for sodium hydroxide
摄影与摄影;加工化学品——氢氧化钠规范
发布日期:
1994-12-15
取消并替换第一版(1976年)。建立照相级氢氧化钠纯度的标准,并规定用于确定纯度的试验。
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade sodium hydroxide and specifies the tests to be used to determine the purity.