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NBN T 52-110-1977 0625 Petroleum products - Flash point by Pensky-Martens closed cup《石油产品 引火点 Pensky-Martens闭杯闪点测定器》.pdf 15

NBN T 52-110-1977 0625 Petroleum products - Flash point by Pensky-Martens closed cup《石油产品 引火点 Pensky-Martens闭杯闪点测定器》.pdfNBN T 52-110-1977 0625 Petroleum products - Flash point by Pensky-Martens closed cup《石油产品 引火点 Pensky-Martens闭杯闪点测定器》.pdf

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NBN T 04-227-1983 5625 Maleic anhydride for industrial use - Measurement of colour of the molten material《工业用顺丁烯二酸酐 熔铸材料的颜色测定》.pdf 1

NBN T 04-227-1983 5625 Maleic anhydride for industrial use - Measurement of colour of the molten material《工业用顺丁烯二酸酐 熔铸材料的颜色测定》.pdfNBN T 04-227-1983 5625 Maleic anhydride for industrial use - Measurement of colour of the molten material《工业用顺丁烯二酸酐 熔铸材料的颜色测定》.pdf

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NBN T 04-226-1983 8750 Maleic anhydride for industrial use - Methods of test - General《工业用顺丁烯二酸酐 试验方法 概述》.pdf 1

NBN T 04-226-1983 8750 Maleic anhydride for industrial use - Methods of test - General《工业用顺丁烯二酸酐 试验方法 概述》.pdfNBN T 04-226-1983 8750 Maleic anhydride for industrial use - Methods of test - General《工业用顺丁烯二酸酐 试验方法 概述》.pdf

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NBN T 04-221-1983 4375 Phthalic anhydride for industrial use - Determination of iron content-2 2--Bipyridyl photometric method《工业用酞醛 铁含量的测定 2 2-联吡啶光度测定法》.pdf 1

NBN T 04-221-1983 4375 Phthalic anhydride for industrial use - Determination of iron content-2 2--Bipyridyl photometric method《工业用酞醛 铁含量的测定 2 2-联吡啶光度测定法》.pdfNBN T 04-221-1983 4375 Phthalic anhydride for industrial use - Determination of iron content-2 2--Bipyridyl photometric method《工业用酞醛 铁含量的测定 2 2-联吡啶光度测定法》.pdf

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NBN T 04-220-1983 8750 Phthalic anhydride for industrial use - Determination of 1 4-naphthaquinone content - Colorimetric method《工业用酞醛 萘醌1 4含量的测定 比色法》.pdf 1

NBN T 04-220-1983 8750 Phthalic anhydride for industrial use - Determination of 1 4-naphthaquinone content - Colorimetric method《工业用酞醛 萘醌1 4含量的测定 比色法》.pdfNBN T 04-220-1983 8750 Phthalic anhydride for industrial use - Determination of 1 4-naphthaquinone content - Colorimetric method《工业用酞醛 萘醌1 4含量的测定 比色法》.pdf

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NBN T 04-219-1983 0000 Phthalic anhydride for industrial use - Determination of impuries oxidizable in the cold by potassium permanganate - Iodometric method《工业用酞醛 用高锰酸钾冷却的可氧化杂质的测定.pdf 1

NBN T 04-219-1983 0000 Phthalic anhydride for industrial use - Determination of impuries oxidizable in the cold by potassium permanganate - Iodometric method《工业用酞醛 用高锰酸钾冷却的可氧化杂质的测定.pdfNBN T 04-219-1983 0000 Phthalic anhydride for industrial use - Determination of impuries oxidizable in the cold by potassium permanganate - Iodometric method《工业用酞醛 用高锰酸钾冷却的可氧化杂质的测定.pdf

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NBN T 03-197-1980 9375 Potassium hydroxide for industrial use - Determination of chlorides content - Photometric method《工业用氢氧化钾，氯化物含量的测定 光度测定法》.pdf 6

NBN T 03-197-1980 9375 Potassium hydroxide for industrial use - Determination of chlorides content - Photometric method《工业用氢氧化钾，氯化物含量的测定 光度测定法》.pdfNBN T 03-197-1980 9375 Potassium hydroxide for industrial use - Determination of chlorides content - Photometric method《工业用氢氧化钾，氯化物含量的测定 光度测定法》.pdf

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NBN T 03-196-1980 6250 Potassium hydroxide for industrial use - Determination of carbon dioxide content - Titrimetric method《工业用氢氧化钾，二氧化碳含量的测定 滴定法》.pdf 6

NBN T 03-196-1980 6250 Potassium hydroxide for industrial use - Determination of carbon dioxide content - Titrimetric method《工业用氢氧化钾，二氧化碳含量的测定 滴定法》.pdfNBN T 03-196-1980 6250 Potassium hydroxide for industrial use - Determination of carbon dioxide content - Titrimetric method《工业用氢氧化钾，二氧化碳含量的测定 滴定法》.pdf

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5人阅读
NBN T 03-195-1980 6250 Potassium hydroxide for industrial use - Sampling - Test sample - Prepa-ration of the main solution for carrying out certain determinations《工业用氢氧化钾，取样 试样 为实现.pdf 5

NBN T 03-195-1980 6250 Potassium hydroxide for industrial use - Sampling - Test sample - Prepa-ration of the main solution for carrying out certain determinations《工业用氢氧化钾，取样 试样 为实现.pdfNBN T 03-195-1980 6250 Potassium hydroxide for industrial use - Sampling - Test sample - Prepa-ration of the main solution for carrying out certain determinations《工业用氢氧化钾，取样 试样 为实现.pdf

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4人阅读
NBN T 03-194-1980 1875 Potassium hydroxide for industrial use - Determination of sodium con-tent - Flame emission spectrophotometric method《工业用氢氧化钾，钠含量的测定 火焰发射分光光度分析法》.pdf 6

NBN T 03-194-1980 1875 Potassium hydroxide for industrial use - Determination of sodium con-tent - Flame emission spectrophotometric method《工业用氢氧化钾，钠含量的测定 火焰发射分光光度分析法》.pdfNBN T 03-194-1980 1875 Potassium hydroxide for industrial use - Determination of sodium con-tent - Flame emission spectrophotometric method《工业用氢氧化钾，钠含量的测定 火焰发射分光光度分析法》.pdf

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