ASTM-D8446 2022

$34.13

D8446-22 Standard Test Method for Water Vapor Content in Compressed Air Using Electronic Moisture Analyzers

Published By	Publication Date	Number of Pages
ASTM	2022	7

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Categories: 71.100.20 - Gases for industrial application, ASTM

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Description

ASTM D8446-22

Active Standard: Standard Test Method for Water Vapor Content in Compressed Air Using Electronic Moisture Analyzers

ASTM D8446

Scope

1.1 This test method covers the determination of the water vapor content in compressed air using portable or in-situ electronic moisture analyzers. Such analyzers commonly use sensing cells based on phosphorus pentoxide, P₂O₅, aluminum oxide, Al₂O₃, or silicon piezoelectric-type cells or laser-based technologies.

1.2 This test method is applicable for the range of condensation temperatures from –80 °C to 60 °C.

1.3 Testing is often performed at reduced pressure from the full pressure of the system or source of compressed air depending on the capability of the specific analyzer. Testing above 2000 kPa may introduce additional uncertainty because of changes in the relationship between water vapor pressure and actual moisture content at elevated pressures.

1.4 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.5 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.

1.6 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; humidity; hygrometer; temperature; vapor pressure dew point;

ICS Code

ICS Number Code 71.100.20 (Gases for industrial application)

DOI: 10.1520/D8446-22

Additional information

Standard Title	D8446-22 Standard Test Method for Water Vapor Content in Compressed Air Using Electronic Moisture Analyzers
Published Code	ASTM
Publication Date	2022
Pages Count	7
ICS Codes	71.100.20 - Gases for industrial application