Подготовка к публикации
ISO 3987
Petroleum products — Determination of sulfated ash in lubricating oils and additives and fatty acid methyl esters
Ссылочный номер
ISO 3987
Версия 4
2024-09
Подготовка к публикации
ISO 3987
86893
Данный международный стандарт находится на заключительных этапах публикации (будет доступен примерно через семь недель).
Текущее издание: ISO 3987:2010

Тезис

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.

Общая информация

  •  : В стадии разработки
     : 2024-09
    : Подготовка международного стандарта к публикации [60.00]
  •  : 4
  • ISO/TC 28
    75.100 
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