GBT4955-2005-金属覆盖层覆盖层厚度测量阳极溶解库仑法.pdf

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1、ICS25.220.20A29中华人民共和国国家标准GB/T4955-2005八SO2177:2003代替〔*B/T4955-1997金属覆盖层覆盖层厚度测量阳极溶解库仑法Metalliccoatings-Measurementofcoatingthickness-Coulometricmethodbyanodicdissolution(ISO2177:2003,IDT)2005-10-12发布2006-04-01实施中华人民共和国国家质量监督检验检疫总局发布中国国家标准化管理委员会GB/T4955-2005/ISO2177:2003目次前言.

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4、·······⋯⋯25仪器·····，，··················，·，·，，，··，··。。。··，···································································，·⋯26电解液··，···············，·，⋯，，，·。···········‘······················································，，·····，，，，27影响测量准确度的因素·。，。。，····················，·

5、·································.....···....⋯⋯，，，，，，，，28操作程序················，····，······，，·，·，，··尸..........................···，·····甲，··，。。。·，，，，，⋯t39结果表示··················，······。···。，··。····················，·································，···········，·一410测量不确定度····，，，

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7、录B(资料性附录》仪器类型·····················，，，，·····，················，，，，·，··⋯，，，，，，⋯，.一“⋯⋯，10GB/T4955-2005/ISO2177:2003oli吕本标准等间采用ISO2177:2003(金属覆盖层覆盖层厚度测量阳极溶解库仑法》(英文版)。本标准根据ISO2177:2003重新起草，本标准对应ISO2177作了如下修改:—取消了国际标准的前言;--一为便于使用，引用了采用国际标准的我国标准;—增加了规范性引用文件的引导语;—用“本标准’，代替“本国际标准”;本标准

8、代替GB/T4955-1997(金属覆盖层覆盖层厚度测量阳极溶解库仑法》本标准与GB/T4955-1997相比，主要变化如下:—修改了表1可测的组合，