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NF T73-258-1990 Surface active agents Detergents Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure 《表面活性剂 洗涤剂 用手工或机械双相直接滴定法测定活性阴离子.pdf

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NF T73-260-1981 Surface active agents Detergents Anionic surface active agents Determination of biodegradability 《表面活性剂 洗涤剂 阴离子表面活性剂 生物降解性的测定》.pdf

NF T73-261-1973 Surface active agents Anionic active matter hydrolysable under alkaline conditions Determination of hydrolysable and non hydrolysable active matter 《表面活性剂 碱性条件下水解阴离.pdf

NF T73-265-1983 Surface active agents Detergents Anionic surface active agents Determination of biodegradability Reference method 《表面活性剂 洗涤剂 阴离子表面活性剂 生物降解性的测定 基准法》.pdf

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