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ISO 3987:2024

Petroleum products - Determination of sulfated ash in lubricating oils and additives and fatty acid methyl esters
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ISO 3987:2024

Petroleum products - Determination of sulfated ash in lubricating oils and additives and fatty acid methyl esters

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This document 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. This document is also applicable to fatty acid methyl esters (FAME).

This test method is applicable to products having sulphated ash contents in the range mass fraction of 0,005 % to 25,00 %. Application of this procedure to sulfated ash levels below a mass fraction of 0,02 % is restricted to oil products containing ashless additives.

This document is not intended for the analysis of used engine oils containing lead, nor for the analysis of non-additive lubricating oils, for which ISO 6245 is suitable.

SDO ISO: International Organization for Standardization
Document Number ISO 3987
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 28
Publish Date Document Id Type View
Not Available ISO 3987:2024 Revision
Not Available ISO 3987:2010 Revision
Not Available Revision