Petroleum products — Determination of sulfated ash in lubricating oils and additives and fatty acid methyl esters ISO/DIS 3987
40.99Full report circulated: DIS approved for registration as FDISJan 10, 2024
Petroleum and related products, fuels and lubricants from natural or synthetic sources
Lubricants, industrial oils and related products
ISO 3987:2010 describes a procedure for the determination of the mass percentage of sulfated ash from unused lubricating oils containing additives and from additive concentrates used in compounding. These additives usually contain one or more of the following metals: barium, calcium, magnesium, zinc, potassium, sodium and tin. The elements sulfur, phosphorus and chlorine can also be present in combined form.