DIN 51352-2:2021-04 Testing of lubricants - Determination of ageing characteristics of lubricating oils - Part 2: Conradson carbon residue after ageing by passage of air in the presence of iron(III)oxide
2021DIN 51352-2:2021 Testing of lubricants - Determination of ageing characteristics of lubricating oils - Part 2: Conradson carbon residue after ageing by passage of air in the presence of iron(III)oxide
1985DIN 51352-2:1985 Testing of lubricants; determination of ageing characteristics of lubricating oils; Conradson carbon residue after ageing by passing air through the lubricating oil in the presence of iron(III)oxide