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珠宝.金合金颜色.定义、颜色范围和标记(ISO 8654-2018); 德文版本EN ISO 8654-2018
Jewellery - Colours of gold alloys - Definition, range of colours and designation (ISO 8654:2018); German version EN ISO 8654:2018
参考页数:17P.;A4
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珠宝.金合金颜色.定义、颜色范围和标记(ISO 8654-2018); 德文版本EN ISO 8654-2018
Jewellery - Colours of gold alloys - Definition, range of colours and designation (ISO 8654:2018); German version EN ISO 8654:2018
参考页数:17P.;A4
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首饰.金首饰合金中金的测定.灰吹法(火焰试金)
Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay)
参考页数:18P.;A4
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贵金属饰品
Precious metal adornment
参考页数:7P.;A4
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贵金属饰品质量测量允差的规定
Provision of permissible errors for measurement of precious metals adornment mass
参考页数:5P.;A4
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首饰.银覆盖层厚度的规定
Jewellery-the provision of silver coatings tickness
参考页数:5P.;A4
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首饰.金覆盖层厚度的规定
Jewellery-the provision of gold coatings tickness
参考页数:8P.;A4
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首饰 金 银覆盖层厚度的测定 X射线荧光光谱法
Jewellery Measurement of gold and silver coating tickness X-ray fluorescence spectrometric methods
参考页数:6P.;A4
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贵金属饰品及零部件几何尺寸的测量方法
Geometric size measuring methods of precious metal jewellery and accessory
参考页数:5P.;A4
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