Testing of cooling lubricants; determination of the pH value of water-mixed cooling lubricantsEssais des réfrigérants lubrifiants; détermination de la valeur du pH des réfrigérants lubrifiants mélangés à l'eau
DIN 51369:1981 history
2013DIN 51369:2013-05 Testing of cooling lubricants - Determination of the pH value of water-mixed cooling lubricants
2013DIN 51369:2013 Testing of cooling lubricants - Determination of the pH value of water-mixed cooling lubricants
1981DIN 51369:1981 Testing of cooling lubricants; Determination of the pH value of water-mixed cooling lubricants