ASTM D7342

ASTM D7342 is the ASTM standard for assessing the prolonged worked stability of lubricating grease in the presence of water, commonly referred to as the Water Stability Test. It is used to evaluate how a grease performs after mechanical working when water is present, helping users understand whether the material can retain useful properties under wet-service conditions. For procurement, quality control, and product comparison, this standard supports more consistent evaluation of grease performance where water resistance matters.

What is ASTM D7342?

This technical document sets out a standardized test method for examining the prolonged worked stability of lubricating grease exposed to water. In practical terms, ASTM D7342 helps characterize whether a grease can continue to perform after extended mechanical working without undue change in behavior caused by water. The standard is relevant when product performance depends on both mechanical durability and resistance to water-related effects, making it a useful reference for laboratory testing and specification review.

Where is ASTM D7342 used?

ASTM D7342 is commonly used in laboratories, quality assurance programs, and product development workflows that evaluate lubricating grease. It is especially relevant for materials intended for applications where moisture or water exposure may be part of normal service conditions. Testing teams, suppliers, and buyers may use it to compare grease formulations, support technical documentation, and verify that products meet expected performance characteristics before use in equipment or maintenance programs.

Why is ASTM D7342 important?

This standard matters because it provides a consistent way to judge grease behavior under a wet, worked condition. That consistency helps reduce uncertainty in product evaluation and supports clearer decisions during compliance checks, sourcing, and quality control. ASTM D7342 can also help identify performance differences between products that may not be obvious from general specifications alone, supporting better risk management when grease must maintain stability in the presence of water.

• Prolonged worked stability assessment
• Water-exposed grease performance
• Standardized laboratory comparison
• Quality control and procurement support
• Technical evaluation of lubricating grease