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Significance and Use
A well-designed sample-handling and conditioning system is essential to the accuracy and reliability of pipeline instruments. Approximately 70 % of the problems encountered are associated with the sampling system.
1.1 This practice covers sample-handling and conditioning systems for typical pipeline monitoring instrumentation (gas chromatographs, moisture analyzers, and so forth). The selection of the sample-handling and conditioning system depends upon the operating conditions and stream composition.
1.2 This practice is intended for single-phase mixtures that vary in composition. A representative sample cannot be obtained from a two-phase stream.
1.3 The values stated in SI units are to regarded as standard. The values stated in English units are for information only.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1142 Test Method for Water Vapor Content of Gaseous Fuels by Measurement of Dew-Point Temperature
D3764 Practice for Validation of the Performance of Process Stream Analyzer Systems
UNSPSC Code 15111500(Gaseous fuels)
ASTM D5503-94(2008), Standard Practice for Natural Gas Sample-Handling and Conditioning Systems for Pipeline Instrumentation, ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top