ASTM D7621 PDF

H2S Analyser. Part Number SA The H2S Analyser and Vapour Phase Processor (SA) are compact bench-top instruments, used to measure the . ASTM D Standard Test Method for Determination of Hydrogen Sulfide in Fuel Oils by Rapid Liquid Phase Extraction. ASTM D Standard Test Method for Determination of Hydrogen Sulfide in Fuel Oils by Rapid Liquid Phase Extraction. active. Buy Now.

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Link to Active This link will always route to the current Active version of the standard. This test method D offers a 15 min d6721 test, simplicity, full precision, and a degree of portability. However, at higher concentrations, it causes a loss of smell, headaches, and dizziness, and at very high concentrations, it causes instantaneous death. Non-SI units given in parentheses are for information only.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. It is strongly recommended that personnel involved in the testing for hydrogen sulfide are aware of the hazards of vapor-phase H 2 S and have in place appropriate processes and procedures to manage the risk of exposure.

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Specification fuels falling within the scope of this test method are: Historical Version s – view previous versions of standard Translated Version s: Control measures to maintain safe levels of H 2 S require a precise method for the measurement of potentially hazardous levels of H 2 S in fuel oils.

Procedure B can give elevated results if such interferences are present see Annex A2. However it does not necessarily simulate the vapor phase H 2 S concentration of a fuel storage tank nor does it provide any indication of the liquid phase H 2 S concentration.

H2S Analyser | IP | ASTM D | ISO

At very low concentrations, the gas has the characteristic smell of rotten eggs. An additional concern is corrosion that can be caused by the presence of H 2 S during refining or other activities. Full precision for Appendix X1 has not yet been determined.

However, this equilibrium and the related liquid and vapor concentrations can vary greatly depending on temperature and the chemical composition of the liquid phase. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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Historical Version s – view previous versions of standard. Measurements can be made outside these ranges however precision has not been determined. The equilibrium of the vapor phase is disrupted the moment a vent or access point is opened to collect a sample.

Hydrogen sulfide H 2 S is a very dangerous, toxic, explosive and flammable, colorless and transparent gas which can be found in crude oil and can be formed during the manufacture of the fuel at the refinery and can be released during handling, storage, and distribution.

A procedure for measuring the amount of hydrogen sulfide in crude oil can be found in Appendix X1.