[ Residual Fuel in Tank ] ──(Heating/Agitation)──> [ H2S Gas Releases into Headspace ] ──> [ Safety/Corrosion Hazard ] H2Scap H sub 2 cap S via ASTM D5705 serves three critical industry functions: Exposure to H2Scap H sub 2 cap S
ASTM D5705 is the Standard Test Method for Measurement of Hydrogen Sulfide in the Vapor Phase Above Residual Fuel Oils . Unlike test methods that measure the total concentration of H2Scap H sub 2 cap S
using rapid extraction, offering higher precision for product quality. ASTM D6021 : A more detailed analytical method for liquid-phase cap H sub 2 cap S using headspace gas chromatography. Safety Warning cap H sub 2 cap S
The full, up-to-date document is available directly from the ASTM International official website.
The solubility of gases changes drastically with temperature. A variance of even 2°C can skew the vapor concentration results.
combine with moisture to form pyrophoric iron sulfide and cause catastrophic corrosion in tank roofs. Summary of the Test Method The ASTM D5705 test simulates the worst-case scenario for H2Scap H sub 2 cap S