DIN EN 15168-2007
表面活性剂.测定氢氧基值.测定P-甲苯磺酰氟异氰酸盐(TSI)法和四丁基铵氢氧化物有效滴定测量法
Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide; English version of DIN EN 15168:2007-02