content in marine fuels to protect seafarers and the environment. Scope and Core Principles of the Test Method
within the liquid oil itself (such as ASTM D6021 or IP 570). Key Test Parameters
The bottle is heated to 60°C and agitated on an orbital shaker at ) for 3 minutes.
The glass bottle is filled to a exact, predetermined volume with the residual fuel oil sample, leaving a specific volume of headspace (vapor space) above the liquid. The bottle is immediately sealed to prevent any volatile H2Scap H sub 2 cap S gas from escaping. 3. Thermal Equilibrium and Agitation
scavengers—chemical additives injected into fuel oils to bind up reactive sulfur compounds. 3. Terminal Operations astm d5705 pdf
The full, up-to-date document is available directly from the ASTM International official website.
Achieving reproducible and repeatable results under ASTM D5705 requires strict adherence to environmental and procedural variables. Small deviations can lead to vastly inaccurate readings. Temperature Control H2Scap H sub 2 cap S
: The tube contains a chemical reagent (often lead acetate) that reacts with H2Scap H sub 2 cap S
For manufacturers and buyers, adhering to this standard is non-negotiable for several reasons: content in marine fuels to protect seafarers and
The procedure defined in ASTM D5705 is relatively straightforward but requires strict adherence to safety protocols due to the toxic nature of H₂S.
is the standard test method for determining the Residual Styrene Monomer Content in Unsaturated Polyester Resins by Gas Chromatography .
). Common manufacturers include Dräger, Gastec, and RAE Systems. These tubes contain a substrate coated with a metal salt (such as lead acetate) that changes color (e.g., white to brown/black) upon contact with H2Scap H sub 2 cap S
To legally obtain, read, and implement the precise step-by-step instructions, tolerances, and precision statements for this test method, you must acquire the official document. The glass bottle is filled to a exact,
Authorized resellers like Techstreet or IHS Markit also provide legal access to the standard.
is available for comparing changes between the current and previous versions (e.g., 2015 vs. 2020). Historical Records : Earlier iterations like
, titled "Standard Test Method for Measurement of Hydrogen Sulfide in the Vapor Phase Above Residual Fuel Oils," is a critical standard in the petroleum industry. It provides a reliable, rapid field method for determining the concentration of hydrogen sulfide (H₂S) in the equilibrium headspace of residual fuel oil samples.