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ISO 20623 : 2017

M00024161

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ISO 20623 : 2017

PETROLEUM AND RELATED PRODUCTS - DETERMINATION OF THE EXTREME-PRESSURE AND ANTI-WEAR PROPERTIES OF LUBRICANTS - FOUR-BALL METHOD (EUROPEAN CONDITIONS)

International Organization for Standardization

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Table of Contents

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Cleaning solvents
6 Apparatus
7 Samples and sampling
8 Preparation of apparatus
9 General procedure
10 Test procedures
11 Calculations
12 Expression of results
13 Precision
14 Test report
Annex A (normative) - Test ball specifications
Annex B (normative) - Mean Hertz Load data sheet
Bibliography

Abstract

This document specifies procedures for the measurement of the extreme pressure (EP) and anti-wear properties of liquid lubricants (categories C, D, F, G, H, M, P of ISO 6743-99), lubricating greases (ISO 6743-9, category X) and other consistent lubricants.

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Document Type Standard
Status Current
Publisher International Organization for Standardization
Committee TC 28
Supersedes
  • ISO 20623 : 2003