IP 450: Diesel fuel – Assessment of lubricity using the high‑frequency reciprocating rig (HFRR) – Part 1: Test method (ISO 12156‑1:2018)

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  • Method adopted/last revised: 2020
  • Method reapproved: None
  • REF/ISBN: IP450-7250659
  • Status: Current
  • First printed in STM books: January 2020

This document specifies a test method using the high-frequency reciprocating rig (HFRR), for assessing the lubricating property of diesel fuels, including those fuels which could 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.

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