Under publication
ISO 3987
Petroleum products — Determination of sulfated ash in lubricating oils and additives and fatty acid methyl esters
Reference number
ISO 3987
Edition 4
2024-09
© ISO 2024
Under publication
Under publication (Edition 4, 2024)
Final production steps (up to seven weeks).
Will replace ISO 3987:2010

Abstract

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.

General information

  • Status
     : Under development
    Publication date
     : 2024-09
    Stage
    : International Standard under publication [60.00]
  • Edition
     : 4
  • Technical Committee :
    ISO/TC 28
    ICS :
    75.100 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

7
Affordable and Clean Energy
8
Decent Work and Economic Growth

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