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ISO 2272-1989 Surface active agents soaps determination of low contents of free glycerol by molecular absorption spectrometry《表面活性剂 肥皂 用分子吸收光谱法测定低含量游离甘油》.pdf 8

ISO 2272-1989 Surface active agents soaps determination of low contents of free glycerol by molecular absorption spectrometry《表面活性剂 肥皂 用分子吸收光谱法测定低含量游离甘油》.pdfISO 2272-1989 Surface active agents soaps determination of low contents of free glycerol by molecular absorption spectrometry《表面活性剂 肥皂 用分子吸收光谱法测定低含量游离甘油》.pdf

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ISO 22719-2008 Water quality - Determination of total alkalinity in sea water using high precision potentiometric titration《水质 用高精度电位滴定仪测定海水总碱度》.pdf 24

ISO 22719-2008 Water quality - Determination of total alkalinity in sea water using high precision potentiometric titration《水质 用高精度电位滴定仪测定海水总碱度》.pdfISO 22719-2008 Water quality - Determination of total alkalinity in sea water using high precision potentiometric titration《水质 用高精度电位滴定仪测定海水总碱度》.pdf

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ISO 20474-10-2017 Earth-moving machinery - Safety - Part 10 Requirements for trenchers《土方机械 安全性 第10部分 挖沟机用要求》.pdf 16

ISO 20474-10-2017 Earth-moving machinery - Safety - Part 10 Requirements for trenchers《土方机械 安全性 第10部分 挖沟机用要求》.pdfISO 20474-10-2017 Earth-moving machinery - Safety - Part 10 Requirements for trenchers《土方机械 安全性 第10部分 挖沟机用要求》.pdf

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ISO 20471 AMD 1-2016 High visibility clothing - Test methods and requirements Amendment 1《警示反光衣 试验方法和要求 修改件1》.pdf 6

ISO 20471 AMD 1-2016 High visibility clothing - Test methods and requirements Amendment 1《警示反光衣 试验方法和要求 修改件1》.pdfISO 20471 AMD 1-2016 High visibility clothing - Test methods and requirements Amendment 1《警示反光衣 试验方法和要求 修改件1》.pdf

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14人阅读
ISO 20462-2-2005 Photography - Psychophysical experimental methods for estimating image quality - Part 2 Triplet comparison method《摄影 评价图像质量的心理生理试验方法 第2部分 三重对比法.pdf 32

ISO 20462-2-2005 Photography - Psychophysical experimental methods for estimating image quality - Part 2 Triplet comparison method《摄影 评价图像质量的心理生理试验方法 第2部分 三重对比法.pdfISO 20462-2-2005 Photography - Psychophysical experimental methods for estimating image quality - Part 2 Triplet comparison method《摄影 评价图像质量的心理生理试验方法 第2部分 三重对比法.pdf

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ISO 20462-1-2005 Photography - Psychophysical experimental methods for estimating image quality - Part 1 Overview of psychophysical elements《摄影 评价图像质量的心理生理试验方法 .pdf 24

ISO 20462-1-2005 Photography - Psychophysical experimental methods for estimating image quality - Part 1 Overview of psychophysical elements《摄影 评价图像质量的心理生理试验方法 .pdfISO 20462-1-2005 Photography - Psychophysical experimental methods for estimating image quality - Part 1 Overview of psychophysical elements《摄影 评价图像质量的心理生理试验方法 .pdf

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ISO 2046-1973 Gaseous breathing oxygen supplies for aircraft《航空器上呼吸用气态氧的供应》.pdf 4

ISO 2046-1973 Gaseous breathing oxygen supplies for aircraft《航空器上呼吸用气态氧的供应》.pdfISO 2046-1973 Gaseous breathing oxygen supplies for aircraft《航空器上呼吸用气态氧的供应》.pdf

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ISO 18132-1-2011 Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels - General requirements for automatic tank gauges - Part 1 Automatic ta.pdf 30

ISO 18132-1-2011 Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels - General requirements for automatic tank gauges - Part 1 Automatic ta.pdfISO 18132-1-2011 Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels - General requirements for automatic tank gauges - Part 1 Automatic ta.pdf

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ISO 1812-1976 Copper alloys Determination of iron content 1 10- Phenanthroline spectrophotometric method《铜合金 铁含量的测定 1 10-菲罗啉分光光度法》.pdf 4

ISO 1812-1976 Copper alloys Determination of iron content 1 10- Phenanthroline spectrophotometric method《铜合金 铁含量的测定 1 10-菲罗啉分光光度法》.pdfISO 1812-1976 Copper alloys Determination of iron content 1 10- Phenanthroline spectrophotometric method《铜合金 铁含量的测定 1 10-菲罗啉分光光度法》.pdf

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ISO 18117-2009 Surface chemical analysis - Handling of specimens prior to analysis《表面化学分析 样品处理前分析》.pdf 16

ISO 18117-2009 Surface chemical analysis - Handling of specimens prior to analysis《表面化学分析 样品处理前分析》.pdfISO 18117-2009 Surface chemical analysis - Handling of specimens prior to analysis《表面化学分析 样品处理前分析》.pdf

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