RO
SR ISO 3987:2025
Petroleum products — Determination of sulfated ash in lubricating oils and additives and fatty acid methyl esters
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">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).</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">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.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: no
Status :
Valid
Approval date : 3/31/2025
Number of pages : 18
ICS : 75.100 Lubricants, industrial oils and related products
Technical Committee : 320 - Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin
- Replaces SR ISO 3987+C1:2013
- Normative reference SR EN ISO 3170:2004
- Normative reference SR EN ISO 3170:2004/C91:2005
- Normative reference SR EN ISO 3171:2002
- Normative reference SR EN ISO 3696:2002