DIN EN 15168:2007-02 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide; German version EN 15168:2006
2007DIN EN 15168:2007-02 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide; German version EN 15168:2006
2007DIN EN 15168:2007 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