ASTM D5969 Test Method for Corrosion-Preventive Properties of Lubricating Greases
ASTM D5969 Standard Test Method for Corrosion-Preventive Properties of Lubricating Greases in Presence of Dilute Synthetic Sea Water Environments
1. Scope
1.1 This test method covers the determination of the corrosion-preventive properties of greases using grease-lubricated tapered roller bearings exposed to various concentrations of dilute synthetic sea water stored under wet conditions. It is based on Test Method D1743, which is practiced using a similar procedure and distilled water. The reported result is a pass or fail rating as determined by at least two of three bearings.
1.2 The values stated in acceptable inch-pound units for the apparatus dimensions are to be regarded as standard, and the SI conversions are provided for information only. All other values stated in acceptable SI units are 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D235 Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvents)
D665 Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water
D1193 Specification for Reagent Water
D1743 Test Method for Determining Corrosion Preventive Properties of Lubricating Greases
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 corrosion - red rust or black spots on the race. Stains, through which the underlying metal surface is still visible, shall be ignored.
