ASTM D6973 Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
1. Scope
1.1 This test method covers a constant volume high-pressure vane pump test procedure for indicating the wear characteristics of petroleum hydraulic fluids. See Annex A1 for recommended testing conditions for water-based synthetic fluids.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 ISO Standards:
ISO 4021 Hydraulic Fluid Power - Particulate Contamination Analysis - Extraction of Fluid Samples from Lines of an Operating System
ISO 4406 Hydraulic Fluid Power - Fluids - Method for Coding the Level of Contamination by Solids Particles
ISO 7745 Hydraulic Fluid Power - Fire-Resistant (FR) Fluids - Guidelines for Use
ISO 11171 Hydraulic Fluid Power - Calibration of Automatic Particle Counters for Liquids
ISO 11500 Hydraulic Fluid Power - Determination of Particulate Contamination by Automatic Counting Using the Light Extinction Principle
2.3 Other Documents:
SAE 100R13-20 Hydraulic Hose Specification
ANSI/(NFPA) T2.13.1 R3-1998 Recommended Practice - Hydraulic Fluid Power - Use of Fire-Resistant Fluids in Industrial Systems
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 flushing, v - the process of cleaning the test system before testing to prevent cross-contamination.
