ISO 20623:2003
Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of fluids - Four ball method (European conditions)
- Standard No.
- ISO 20623:2003
- Release Date
- 2003
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 20623:2017
- Latest
- ISO 20623:2017
- Scope
- This International Standard specifies procedures for the measurement of the extreme-pressure (EP) and antiwear properties of lubricating oils and fluids by means of the four ball machine. The conditions of test are those that apply in Europe and other areas that have similar electrical supply characteristics (200 V to 250 V, 50 Hz). In North America, the conditions of test are slightly different, but provide a similar ranking of the lubricating properties of fluids. The test conditions are not intended to 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 20623:2003 Referenced Document
- ISO 3170 Petroleum liquids - Manual sampling*， 2004-02-01 Update
- ISO 683-17:1999 Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels
ISO 20623:2003 history
- 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)
