Testing of lubricants; testing in the Shell four-ball tester; determination of welding load of consistent lubricants Essais de lubrifiants; essai dans l'appareil Shell à quatre billes; détermination de la charge de soudage des lubrifiants solidesZusamm
DIN 51350-4:1984 history
2015DIN 51350-4:2015-03 Testing of lubricants - Testing in the four-ball tester - Part 4: Determination of welding load of consistent lubricants
2015DIN 51350-4:2015 Testing of lubricants - Testing in the four-ball tester - Part 4: Determination of welding load of consistent lubricants
1984DIN 51350-4:1984 Testing of lubricants; testing by the Shell four-ball tester; determination of welding load of consistent lubricants