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NBN X 03-001-1985 3125 Statistical interpretation of test results - Estimation of the mean - Confidence interval 《测试结果的统计描述 估计平均置信区间》.pdf 1

NBN X 03-001-1985 3125 Statistical interpretation of test results - Estimation of the mean - Confidence interval 《测试结果的统计描述 估计平均置信区间》.pdfNBN X 03-001-1985 3125 Statistical interpretation of test results - Estimation of the mean - Confidence interval 《测试结果的统计描述 估计平均置信区间》.pdf

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NBN T 52-114-1978 1875 Petroleum oils - Determination of cloud point《石油油料 浊点的测定》.pdf 6

NBN T 52-114-1978 1875 Petroleum oils - Determination of cloud point《石油油料 浊点的测定》.pdfNBN T 52-114-1978 1875 Petroleum oils - Determination of cloud point《石油油料 浊点的测定》.pdf

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NBN T 52-113-1978 8750 Petroleum oils - Determination of pour point《石油油料 流点的测定》.pdf 7

NBN T 52-113-1978 8750 Petroleum oils - Determination of pour point《石油油料 流点的测定》.pdfNBN T 52-113-1978 8750 Petroleum oils - Determination of pour point《石油油料 流点的测定》.pdf

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NBN T 52-112-1976 5000 Determination of total base number of petroleum pro-ducts by potentiometric perchloric acid titration《石油产品总碱值的测定 电势高氯酸滴定法》.pdf 15

NBN T 52-112-1976 5000 Determination of total base number of petroleum pro-ducts by potentiometric perchloric acid titration《石油产品总碱值的测定 电势高氯酸滴定法》.pdfNBN T 52-112-1976 5000 Determination of total base number of petroleum pro-ducts by potentiometric perchloric acid titration《石油产品总碱值的测定 电势高氯酸滴定法》.pdf

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NBN T 52-111-1978 0625 Petroleum products - Gasoline - Determination of lead -content - Jodine monochloride method《石油产品 汽油 铅含量的测定Jodine氯化物法》.pdf 6

NBN T 52-111-1978 0625 Petroleum products - Gasoline - Determination of lead -content - Jodine monochloride method《石油产品 汽油 铅含量的测定Jodine氯化物法》.pdfNBN T 52-111-1978 0625 Petroleum products - Gasoline - Determination of lead -content - Jodine monochloride method《石油产品 汽油 铅含量的测定Jodine氯化物法》.pdf

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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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