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1.1 This test method covers the determination of the extraneous materials weathering above 38°C that are present in liquefied petroleum gases.
1.2 Liquefied petroleum gases that contain alcohols to enhance their anti-icing behaviour can give erroneous results by this test method.
1.3 The result can be expressed in terms of measured volumes or indices derived from these volumes. In either case, the test method provides an indication of the quantity and nature of materials in the product that are substantially less volatile than the liquefied petroleum gas hydrocarbons.
1.4 Although this test method has been used to verify cleanliness and lack of heavy contaminants in propane for many years, it may 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, may be required for some applications.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see 6.9.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D96 Test Method for Water and Sediment in Crude Oil by Centrifuge Method (Field Procedure)
D1796 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure)
D1835 Specification for Liquefied Petroleum (LP) Gases
E1137 Specification for Industrial Platinum Resistance Thermometers
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
E2877 Guide for Digital Contact Thermometers
ICS Number Code 75.160.30 (Gaseous fuels)
UNSPSC Code 15111510(Liquified petroleum gas)
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ASTM D2158-02, Standard Test Method for Residues in Liquefied Petroleum (LP) Gases, ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top