BS EN ISO 12156-1:2016

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Sampling
8 Preparation and calibration
9 Test procedure
10 Measurement of wear scar
11 Test results
12 Precision
13 Test report
Annex A (informative) - Measurement of HFRR wear scars
Annex B (informative) - Major changes to the former edition
        of this part of ISO 12156
Bibliography

Defines a test method using the high-frequency reciprocating rig (HFRR), for assessing the lubricating property of diesel fuels, including those fuels which may contain a lubricity-enhancing additive.

This part of ISO12156 specifies a test method using the high-frequency reciprocating rig (HFRR), for assessing the lubricating property of diesel fuels, including those fuels which may contain a lubricity-enhancing additive. It defines two methods for measurement of the wear scar; Method “A??— Digital camera, and Method “B??— Visual observation. This test method applies to fuels used in diesel engines. NOTE It is not known if this test method will predict the performance of all additive/fuel combinations, including paraffinic fuels for which no additional correlation testing has been performed. Nevertheless, no data has been presented to suggest that such fuels are not within scope.