Standard Test Method for Determination of Water Content of Liquefied Petroleum Gases (LPG) Using an Online Electronic Moisture Analyzer

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

12-07-2021

Publisher

American Society for Testing and Materials

1.1This test method covers the quantitative determination of water in liquefied petroleum gases (LPG) from 1 mg/kg to 250 mg/kg using an online electronic moisture analyzer, also known as an electronic hygrometer or dew point analyzer, in the absence of methanol or other anti-freeze agent.

1.1.1These analyzers commonly use sensing cells based on aluminum oxide, Al₂O₃, silicone, phosphorus pentoxide, P₂O₅, piezoelectric-type cells, or laser-based technologies to measure the dew point temperature of LPG.

1.1.2Knowledge of the hydrocarbon composition of the LPG is required to calculate the water content on a mass basis from the dew point temperature of an LPG sample.

1.1.3The LPG shall be free of alcohol (sometimes added as an anti-freeze agent) as it can interfere with the electronic moisture analyzer. Thus the method will be most useful in a process facility where it is known that no methanol has been added to the LPG product.

1.2The values stated in SI units are to be regarded as standard.

1.2.1There is an exception in Appendix X1, where the unit “mbar” is used in data provided by an external source, and parts per million by weight (ppm by weight) is widely used in industry.

1.3This 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.

1.4This 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.

Committee	D 02
DocumentType	Test Method
Pages	6
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 8094 : 2020

ASTM D 6849 : 2022	Standard Practice for Storage and Use of Liquefied Petroleum Gases (LPG) in Sample Cylinders for LPG Test Methods
ASTM D 1142 : 1995 : R2021	Standard Test Method for Water Vapor Content of Gaseous Fuels by<brk/> Measurement of Dew-Point Temperature
ASTM D 2163 : 2023 : EDT 1	Standard Test Method for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography
ASTM D 6299 : 2021	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 6299 : 2022 : EDT 1	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 7453 : 2018	Standard Practice for Sampling of Petroleum Products for Analysis by Process Stream Analyzers and for Process Stream Analyzer System Validation
ASTM D 7808 : 2022	Standard Practice for Determining the Site Precision of a Process Stream Analyzer on Process Stream Material
ASTM D 6299 : 2023 : REV A	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 6849 : 2013 : R2021	Standard Practice for Storage and Use of Liquefied Petroleum Gases (LPG) in Sample Cylinders for LPG Test Methods
ASTM D 6299 : 2023 : EDT 1	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 6299 : 2023	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 1835 : 2020	Standard Specification for Liquefied Petroleum (LP) Gases
ASTM D 6849 : 2013	Standard Practice for Storage and Use of Liquefied Petroleum Gases (LPG) in Sample Cylinders for LPG Test Methods
ASTM D 1835 : 2022	Standard Specification for Liquefied Petroleum (LP) Gases
ASTM D 6299 : 2022	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D 7808 : 2018	Standard Practice for Determining the Site Precision of a Process Stream Analyzer on Process Stream Material
ASTM D 2163 : 2014 : R2019	Standard Test Method for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography
ASTM D 2163 : 2023	Standard Test Method for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography
ASTM D 7453 : 2022	Standard Practice for Sampling of Petroleum Products for Analysis by Process Stream Analyzers and for Process Stream Analyzer System Validation
ASTM D 1142 : 1995 : R2012	Standard Test Method for Water Vapor Content of Gaseous Fuels by<brk/> Measurement of Dew-Point Temperature