NF T73-296*NF EN 15168:2007 Surface active agents - Determination of hydroxyl value - p-toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide.
2007NF T73-296*NF EN 15168:2007 Surface active agents - Determination of hydroxyl value - p-toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide.