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ASTM D7621 Apparatus for Hydrogen Sulfide in Fuel Oils
KN-7621 Apparatus for Hydrogen Sulfide in Fuel Oils conforms to ASTM D7621 Standard Test Method for Determination of Hydrogen Sulfide in Fuel Oils by Rapid Liquid Phase Extraction. A weighed test specimen is introduced into a heated test vessel containing a diluent base oil. Air is bubbled through the oil to extract the H2S gas. The air with the extracted H2S is passed, via a vapor phase processor (Procedure A only), to an H2S specific electro-chemical detector enabling the H2S content of the air to be measured and the amount in the liquid phase to be calculated in mg/kg/ The filter cartridge is not required for procedure B.
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