ASTM D4998-13R21
Standard Test Method for Evaluating Wear Characteristics of Tractor Hydraulic Fluids
| Standard number: | ASTM D4998-13R21 |
| Released: | 01.10.2021 |
| Status: | Active |
| Pages: | 6 |
| Section: | 05.02 |
| Keywords: | anti-wear characteristics; fluid; FZG; gear systems; hydraulic fluid; lubricants; petroleum and petroleum products; transmission fluid and gear oil; wear and wear life of lubricants; |
| ASTM number: | ASTM D4998 |
| Supersedes: | D4998-13 |
1.1 This test method is used to screen lubricants for gear wear. It is primarily applicable to tractor hydraulic fluids but may be suitable for other applications.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning information is given in Sections 7 and 9.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.