ASTM UOP988 - 11 - Low Trace Sulfur in LPG and Gaseous Hydrocarbons by Oxidative Combustion with Ultraviolet Fluorescence Detection

ASTM UOP988 - 11

Low Trace Sulfur in LPG and Gaseous Hydrocarbons by Oxidative Combustion with Ultraviolet Fluorescence Detection

Status : Current   Published : April 2011

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This method is for determining sulfur in liquefied petroleum gas (LPG) and gaseous hydrocarbons at concentrations ranging from 10 to 1400 ng/g (0.01 to 1.40 mass-ppm). A trap & release procedure is used to increase the sensitivity of the analysis.



Higher concentrations can be determined by ASTM Method D6667, "Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases by Ultraviolet Fluorescence," or ASTM Method D7551, "Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases and Natural Gas by Ultraviolet Fluorescence," by using the instrument without the trap & release module.

LPG samples are expanded into the gas phase before analysis. If any heavy sulfur compounds are present in the LPG that do not volatilize quantitatively with the LPG, they may be underreported.

Halogens interfere at concentrations greater than approximately 0.3%. The method can also be applied to the analysis of hydrogen and other gas samples.




Standard NumberASTM UOP988 - 11
TitleLow Trace Sulfur in LPG and Gaseous Hydrocarbons by Oxidative Combustion with Ultraviolet Fluorescence Detection
StatusCurrent
Publication Date01 April 2011
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
ICS71.100.20
PublisherASTM
FormatA4
DeliveryYes
Pages8
File Size99 KB
Price£40.00


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