Petroleum and related products. Determination of the extreme-pressure and anti-wear properties of lubricants. Four-ball method (European conditions) Ingestion-build-63436 — pressure safety valve

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Petroleum and related products. Determination of the extreme-pressure and anti-wear properties of lubricants. Four-ball method (European conditions) Ingestion-build-63436 — pressure safety valve1 Scope 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 674399), lubricating greases (ISO 67439, category X) and other consistent lubricants. 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