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NF U42-191-1988 Fertilizers Nitrogenous fertilizers containing synthetic organic nitrogen Determination of the types of nitrogen 《肥料 合成有机氮中氮肥含量的测定》.pdf 12

NF U42-191-1988 Fertilizers Nitrogenous fertilizers containing synthetic organic nitrogen Determination of the types of nitrogen 《肥料 合成有机氮中氮肥含量的测定》.pdfNF U42-191-1988 Fertilizers Nitrogenous fertilizers containing synthetic organic nitrogen Determination of the types of nitrogen 《肥料 合成有机氮中氮肥含量的测定》.pdf

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NF U42-151-1984 Fertilizers Determination of total nitrogen content Titrimetric method after distillation 《肥料 氮总含量的测定 蒸馏滴定法》.pdf 6

NF U42-151-1984 Fertilizers Determination of total nitrogen content Titrimetric method after distillation 《肥料 氮总含量的测定 蒸馏滴定法》.pdfNF U42-151-1984 Fertilizers Determination of total nitrogen content Titrimetric method after distillation 《肥料 氮总含量的测定 蒸馏滴定法》.pdf

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NF U42-125-1985 Fertilizers Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide Titrimetric me.pdf 5

NF U42-125-1985 Fertilizers Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide Titrimetric me.pdfNF U42-125-1985 Fertilizers Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide Titrimetric me.pdf

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NF T73-415-1983 Surface active agents Water dispersing power in dry cleaning solvents 《表面活性剂 干洗溶剂中水的扩散能力》.pdf 6

NF T73-415-1983 Surface active agents Water dispersing power in dry cleaning solvents 《表面活性剂 干洗溶剂中水的扩散能力》.pdfNF T73-415-1983 Surface active agents Water dispersing power in dry cleaning solvents 《表面活性剂 干洗溶剂中水的扩散能力》.pdf

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NF T73-414-1983 Surface active agents Cationic surface active agents (hydrochlorides and hydrobromides) Determination of critical micellization concentration Method by measurement .pdf 4

NF T73-414-1983 Surface active agents Cationic surface active agents (hydrochlorides and hydrobromides) Determination of critical micellization concentration Method by measurement .pdfNF T73-414-1983 Surface active agents Cationic surface active agents (hydrochlorides and hydrobromides) Determination of critical micellization concentration Method by measurement .pdf

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NF T73-411-1980 Anionic and non-ionic surface active agents Determination of the critical micellization concentration Method by measuring surface tension with a plate stirrup or ri.pdf 5

NF T73-411-1980 Anionic and non-ionic surface active agents Determination of the critical micellization concentration Method by measuring surface tension with a plate stirrup or ri.pdfNF T73-411-1980 Anionic and non-ionic surface active agents Determination of the critical micellization concentration Method by measuring surface tension with a plate stirrup or ri.pdf

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NF T73-410-1997 Non-ionic surface active agents Determination of cloud point index Volumetric method 《非离子表面活性剂 浊点指数的测定 体积法》.pdf 8

NF T73-410-1997 Non-ionic surface active agents Determination of cloud point index Volumetric method 《非离子表面活性剂 浊点指数的测定 体积法》.pdfNF T73-410-1997 Non-ionic surface active agents Determination of cloud point index Volumetric method 《非离子表面活性剂 浊点指数的测定 体积法》.pdf

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NF T73-408-1987 Surface active agents Water used as a solvent for tests Specifications and test methods 《表面活性剂 试验溶剂用水 规范和试验方法》.pdf 6

NF T73-408-1987 Surface active agents Water used as a solvent for tests Specifications and test methods 《表面活性剂 试验溶剂用水 规范和试验方法》.pdfNF T73-408-1987 Surface active agents Water used as a solvent for tests Specifications and test methods 《表面活性剂 试验溶剂用水 规范和试验方法》.pdf

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NF T57-102-1999 Textile-glass-reinforced plastics Prepregs moulding compounds and laminates Determination of the textile-glass and mineral-filler content Calcination methods 《纺织物玻璃.pdf 12

NF T57-102-1999 Textile-glass-reinforced plastics Prepregs moulding compounds and laminates Determination of the textile-glass and mineral-filler content Calcination methods 《纺织物玻璃.pdfNF T57-102-1999 Textile-glass-reinforced plastics Prepregs moulding compounds and laminates Determination of the textile-glass and mineral-filler content Calcination methods 《纺织物玻璃.pdf

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NF T57-100-1973 Plastics materials reinforced with textile glass Definition of visual defects 《带纺织物玻璃纤维的增强塑料 目测缺陷的定义》.pdf 3

NF T57-100-1973 Plastics materials reinforced with textile glass Definition of visual defects 《带纺织物玻璃纤维的增强塑料 目测缺陷的定义》.pdfNF T57-100-1973 Plastics materials reinforced with textile glass Definition of visual defects 《带纺织物玻璃纤维的增强塑料 目测缺陷的定义》.pdf

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