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.
Status: Under developmentYou can help develop this draft international standard by contacting your national memberStage: DIS ballot initiated: 12 weeks [40.20]
Edition: 4Number of pages: 5
Technical Committee :ISO/TC 28ICS :75.100
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