ISO 20623:2017 PDF

Scope: This document specifies procedures for the measurement of the extreme pressure (EP) and antiwear properties of liquid lubricants (categories C, D, F, G, H, M, P of ISO 6743-99), lubricating greases simulate particular service conditions, but to provide information over a range of standard conditions for the purpose of research, development, quality control and fluid ranking. The output is used in lubricant specifications.

ISO 20623:2017 Referenced Document

ASTM D4057-12 Standard Practice for Manual Sampling of Petroleum and Petroleum Products*， 2024-04-20 Update
EN 10027-2:2015 Designation systems for steels - Part 2: Numerical system
ISO 3170:2004 Petroleum liquids - Manual sampling
ISO 3290-1:2014 Rolling bearings - Balls - Part 1: Steel balls
ISO 4259:2006 Petroleum products - Determination and application of precision data in relation to methods of test
ISO 6743-99:2002 Lubricants, industrial oils and related products (class L) - Classification - Part 99: General
ISO 6743-9:2003 Lubricants, industrial oils and related products (class L) - Classification - Part 9: Family X (Greases)

2017 ISO 20623:2017 Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of lubricants - Four-ball method (European conditions)
2003 ISO 20623:2003 Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of fluids - Four ball method (European conditions)