This document specifies general working principles for testing of lubricants using four-ball tester.
DIN 51350-1:2010 Referenced Document
DIN 51350-2 Testing of lubricants - Testing in the four-ball tester - Part 2: Determination of welding load of liquid lubricants*, 2015-03-01 Update
DIN 51350-3 Testing of lubricants - Testing in the four-ball tester - Part 3: Determination of wearing characteristics of liquid lubricants*, 2015-03-01 Update
DIN 51350-4 Testing of lubricants - Testing in the four-ball tester - Part 4: Determination of welding load of consistent lubricants*, 2015-03-01 Update
DIN 51350-5 Testing of lubricants - Testing in the four-ball tester - Part 5: Determination of wearing characteristics for consistent lubricants*, 2015-03-01 Update
DIN 51350-1:2010 history
2015DIN 51350-1:2015-03 Testing of lubricants - Testing in the four-ball tester - Part 1: General working principles
2015DIN 51350-1:2015 Testing of lubricants - Testing in the four-ball tester - Part 1: General working principles
2010DIN 51350-1:2010 Testing of lubricants - Testing in the four-ball tester - Part 1: General working principles
1977DIN 51350-1:1977 Testing of lubricants; testing in the Shell-four-ball tester, general working principles