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Significance and Use
5.1 This test method provides an accurate and reliable procedure to measure the total heating value of a fuel gas, on a continuous basis, which is used for regulatory compliance, custody transfer, and process control.
5.2 Some instruments which conform to the requirements set forth in this test method can have response times on the order of 1 min or less and can be used for on-line measurement and control.
5.3 The method is sensitive to the presence of oxygen and nonparaffin fuels. For components not listed and composition ranges that fall outside those in and , modifications in the method and changes to the calibration gas or gasses being used may be required to obtain correct results.
1.1 This test method covers the determination of the heating value of natural gases and similar gaseous mixtures within the range of composition shown in , and that covers flare components but is not intended to limit the components to be measured in flare gases.
1.2 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.
1.3 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
EPA StandardEPA-600 /2-85-106
D1826 Test Method for Calorific (Heating) Value of Gases in Natural Gas Range by Continuous Recording Calorimeter
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 75.060 (Natural gas); 75.160.30 (Gaseous fuels)
UNSPSC Code 15111500(Gaseous fuels)
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ASTM D4891-13(2018), Standard Test Method for Heating Value of Gases in Natural Gas and Flare Gases Range by Stoichiometric Combustion, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top