Scope
This part of IS0 12156 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
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. Additional work is underway to further establish this correlation and future revisions of this part of IS0 12156 may be necessary once this work is complete.
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