DIN 51559-1:2009-04 Testing of mineral oils - Determination of the saponification number - Part 1: Saponification numbers above 2, colorindicator titration
2009DIN 51559-1:2009-04 Testing of mineral oils - Determination of the saponification number - Part 1: Saponification numbers above 2, colorindicator titration
2009DIN 51559-1:2009 Testing of mineral oils - Determination of the saponification number - Part 1: Saponification numbers above 2, colorindicator titration
1978DIN 51559-1:1978 Testing of mineral oils; determination of the saponification number, saponification numbers above 2, colorindicator titration