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ASTM D2158-21

Current Revision

Standard Test Method for Residues in Liquefied Petroleum (LP) Gases

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1.1 This test method covers the determination of extraneous materials weathering above 38 °C that are present in liquefied petroleum gases. The extraneous materials will generally be dissolved in the LPG, but may have phase-separated in some instances.

1.2 Liquefied petroleum gases that contain certain anti-icing additives can give erroneous results by this test method.

1.3 Although this test method has been used to verify cleanliness and lack of heavy contaminants in propane for many years, it might not be sensitive enough to protect some equipment from operational problems or increased maintenance. A more sensitive test, able to detect lower levels of dissolved contaminants, could be required for some applications.

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


5.1 Control over the residue content (required by Specification D1835) is of considerable importance in end-use applications of LPG. In liquid feed systems, residues can lead to troublesome deposits and, in vapor withdrawal systems, residues that are carried over can foul regulating equipment. Residues that remain in vapor-withdrawal systems will accumulate, can be corrosive, and will contaminate subsequent product. Water, particularly if alkaline, can cause failure of regulating equipment and corrosion of metals.

5.2 See Appendix X2 for information on the effect of temperature on the measurement of residue in LPG.

SDO ASTM: ASTM International
Document Number D2158
Publication Date July 1, 2021
Language en - English
Page Count 7
Revision Level 21
Supercedes
Committee D02.H0
Publish Date Document Id Type View
July 1, 2021 D2158-21 Revision
Dec. 15, 2016 D2158-16AE01 Revision
Dec. 15, 2016 D2158-16A Revision
Dec. 1, 2016 D2158-16 Revision
Jan. 1, 2011 D2158-11 Revision
Nov. 1, 2005 D2158-05 Revision
May 1, 2004 D2158-04 Revision
April 10, 2002 D2158-97E01 Revision
April 10, 2002 D2158-02 Revision
Not Available D2158-89 Revision