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ASTM-D8094 2021

ASTM-D8094 2021

$34.13

D8094-21 Standard Test Method for Determination of Water Content of Liquefied Petroleum Gases (LPG) Using an Online Electronic Moisture Analyzer

Published By Publication Date Number of Pages
ASTM 2021 6
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ASTM D8094-21

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

ASTM D8094

Scope

1.1 This 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.

1.1.1 These 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.

1.1.2 Knowledge 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.

1.1.3 The 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.

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

1.2.1 There 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.

1.3 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.

Keywords

dew point; electronic moisture analyzer; liquefied petroleum gases; LPG; valve freeze; water in LPG;

ICS Code

ICS Number Code 75.160.20 (Liquid fuels)

DOI: 10.1520/D8094-21

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ASTM-D8094 2021
$34.13