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Standard Test Method for Measurement of Total Hydrogen Sulfide in Residual Fuels by Multiple Headspace Extraction and Sulfur Specific Detection
NORMA vydaná dňa 1.10.2017
Označenie normy: ASTM D6021-12(2017)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.10.2017
Kód tovaru: NS-800769
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
heavy distillates, heavy distillate/residual fuel blends, hydrogen sulfide, multiple headspace extraction, residual fuels, sulfur specific detection,, ICS Number Code 27.060.10 (Liquid and solid fuel burners)
Significance and Use | ||||||||||||||||||||
5.1 Residual fuel oils can contain
H5.1.1 The measurement of
H5.2 This test method was developed so
refiners, fuel terminal operators and independent testing
laboratory personnel can analytically measure the amount of
HNote 1: Test Method D6021 is one of three test methods for
quantitatively measuring H2S in residual fuels: 5.3 H2S concentrations in the liquid and vapor phase attempt to reach equilibrium in a static system. However, this equilibrium and the related liquid and vapor concentrations can vary greatly depending on temperature and the chemical composition of the liquid phase. A concentration of 1 mg/kg (μg/g) (ppmw) of H2S in the liquid phase of a residual fuel can typically generate an actual gas concentration of >50 μL/L(ppmv) to 100 μL/L(ppmv) of H2S in the vapor phase, but the equilibrium of the vapor phase is disrupted the moment a vent or access point is opened to collect a sample. Note 2: Because of the reactivity, absorptivity, and
volatility of H2S any measurement method only
provides an H1.1 This test method covers a method
suitable for measuring the total amount of hydrogen sulfide
(H1.2 The values stated in SI units are to
be regarded as standard. No other units of measurement are included
in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||||||||||||
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