While you need the full PDF for exact parameters, here is the high-level workflow described in ASTM D5705:
The EP properties of lubricating greases are vital for ensuring the durability and efficiency of machinery and mechanical components. In applications where equipment is subjected to high loads and pressures, the use of greases with excellent EP properties can significantly reduce wear and tear, prevent metal-to-metal contact, and ultimately extend the lifespan of the equipment.
While ASTM D5705 is highly valued for its speed, simplicity, and field execution, operators must be aware of its limitations:
No, not legally. ASTM standards are copyrighted. However, you can purchase a single-user PDF for about $55 from the ASTM website. astm d5705 pdf
in the liquid phase, which can outgas into storage tank headspaces, creating hazardous environments.
The result is reported in parts per million by volume (ppm v/v). Scope and Limitations (ASTM D5705-20)
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. While you need the full PDF for exact
A temperature-controlled water bath, air bath, or oven capable of maintaining a steady
Reading the length of a chemical stain can introduce slight subjective variations between different technicians.
It is applicable to liquids with a viscosity range of 5.5 mm²/s at 40° C to 50 mm²/s at 100° C. ASTM standards are copyrighted
: The sample is purged with nitrogen and heated to 60°C while being agitated, often at 220 RPM.
Understanding ASTM D5705: The Standard Test Method for Measuring Hydrogen Sulfide in the Vapor Phase Above Residual Fuel Oils Introduction
While ASTM D5705 is a field-friendly vapor test, it is often used alongside other standards for more comprehensive analysis: ASTM D7621 : Measures cap H sub 2 cap S liquid phase
A different rapid test method for Liquid Phase H₂S.
contributes to severe metal corrosion in storage tanks, piping, and ship hulls, increasing maintenance costs and structural risks.