A Full Breakdown of ASTM D874
ASTM D874 is the main standard used to test sulphated ash from lubricating oils. It is routinely deployed for quality assurance and control (QA/QC) purposes where the composition of unused oils or additive concentrates can provide valuable insights for process engineers. The scope of ASTM D874 subsequently has wide ranging cross-market applicability. Here we will offer a full breakdown of ASTM D874, from its significance to some specific considerations to bear in mind. ASTM D874 Scope ASTM D874 covers the standard procedure for determining the mass percentage of sulphated ash from lubricants containing metallic additives—usually barium, calcium, magnesium, potassium, sodium,…