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GB/T 12009.4-1989 Polymethylene polyphenyl isocyanate--Determination of ISOcyanate content 多亚甲基多苯基异氰酸酯中异氰酸根含量测定方法 - 中英文版 |
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GB/T 12009.2-1989 Isocyanates--Determination of hydrolyzable chlorine content 异氰酸酯中水解氯含量测定方法 - 中英文版 |
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GB/T 12009.1-1989 Isocyanates--Determination of total chlorine content 异氰酸酯中总氯含量测定方法 - 中英文版 |
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GB/T 4333.3-1988 Methods for chemical analysisof ferrosilicon--The potassium periodate photometric method for the determination of manganese content 硅铁化学分析方法 高碘酸钾光度法测定锰量 - 中英文版 |
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GB/T 4333.2-1988 Methods for chemical analysisof ferrosilicon--The reduced molybdobismuthylphosphoric acid photometric method for the determination of phosphorus content 硅铁化学分析方法 铋磷钼蓝光度法测定磷量 - 中英文版 |
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GB/T 3653.6-1988 Methods for chemical analysisof ferroboron--The reduced molybdoantimonylphosphoric acid photometric method for the determination of phosphorus content 硼铁化学分析方法 锑磷钼蓝光度法测定磷量 - 中英文版 |
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GB/T 4702.14-1988 Methods for chemical analysisof chromium metal--The infrared absorption method for the determination of carbon content 金属铬化学分析方法 红外线吸收法测定碳量 - 中英文版 |
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GB/T 8120-1987 High-purity n-heptane and isooctance--Determination of purity--Capillary gas chromatography 高纯正庚烷和异辛烷纯度测定法 (毛细管色谱法) - 中英文版 |
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GB/T 6730.50-1986 Methods for chemical analysisof iron ores--The gas volumetric method for the determination of total carbon content 铁矿石化学分析方法 气体容量法测定总碳量 - 中英文版 |
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GB/T 5474-1985 Phenol-formaldehyde mouldings--Determination of free ammonia and ammonium compounds--Colorimetric comparison method 酚醛模塑制品游离氨和铵化合物的测定 比色法 - 中英文版 |
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GB/T 5124.3-1985 Methods for chemical analysisof hardmetals--The potentiometric method for the determination of cobalt content 硬质合金化学分析方法 电位滴定法测定钴量 - 中英文版 |
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GB/T 3654.9-1983 Methods for chemical analysisof ferroniobium--The thiocyanate photometric method for the determination of tungsten content 铌铁化学分析方法 硫氰酸盐光度法测定钨量 - 中英文版 |
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GB/T 12009.4-2016 (Plastics - Aromatic isocyanates for the production of polyurethane - Part 4: Determination of ISOcyanate content - amendment No. 1) 塑料 聚氨酯生产用芳香族异氰酸酯 第4部分：异氰酸根含量的测定《第1号修改单》 - 中英文版 |
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