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Chinese Standard: GB/T 22404-2008

Photography—Processing chemicals—Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate

IDT  ISO 424:1994

全国感光材料标准化技术委员会(SAC/TC 102)

本标准规定了照相级无水碳酸钠和一水合碳酸钠的纯度要求及测试纯度的试验方法。

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