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Photography—Processing chemicals—Specifications for possium sulfite solution,650 g/L
IDT ISO 5990:2000
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亚硫酸钾溶液(650 g/L)的纯度要求及测试纯度的试验方法。
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