GB/T 22409-2008 in English
VALIDPhotography - Processing chemicals - Specifications for possium sulfite solution,650g/L
- Issued on:2008-10-10
- Implemented on:2009-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$146.00
《GB/T 22409-2008摄影 加工用化学品 亚硫酸钾溶液(650g/L)》由TC102(全国感光材料标准化技术委员会)归口,主管部门为中国石油和化学工业联合会。
本标准等同采用ISO 5990:2000《摄影―――加工用化学品―――亚硫酸钾溶液(650g/L)规格》(英文版)。
本标准等同翻译ISO 5990:2000。
本标准规定了照相级亚硫酸钾溶液(650g/L)的纯度要求及测试纯度的试验方法。
为了便于使用,本标准做了如下编辑性修改:
―――“本国际标准”或“ISO 5990”改为“本标准”;
―――用小数点“.”代替作为小数点的逗号“,”;
―――删除ISO 5990:2000的前言、引言;
―――将第2章“规范性引用文件”所列国际标准用等同翻译的国家标准代替。
Scope
This standard specifies the purity requirements and test methods for photographic grade potassium sulfite solution (650g/L).

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