ASTMD6371-99

Designation:D 6371-99An American Nafional StandardNTERNATIONALStandard Test Method forCold Filter Plugging Point of Diesel and Heating Fuels1This standard is issued under the fixed designation D6371;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon ()indicates an editorial change since the last revision or reapproval.1.Scope2.2 IP Standards.61.1 This test method covers the determination of the coldIP 309 Diesel and domestic heating fuels-Determination off lter plugging point(CFPP)temperature of diesel and domes-cold fi lter plugging pointtic heating fuels using either manual or automated apparatus.Specifi cations for IP Standard Thermometers2.3 ISO Standards:7NorE 1-This test method is technically equivalent to test methods IPIP 3310 Test sieves -Technical requirements and testing-309 and EN 116.Part 1:Metal cloth1.2 The manual apparatus and automated apparatus are both2.4 European Standards.suitable for referee purposes.EN 116 Diesel and domestic heating fuels-Determination1.3 This test method is applicable to distillate fuels,includ-of cold filter plugging pointing those containing a flow-improving or other additive,intended for use in diesel engines and domestic heating3.Terminologyinstallations.3.1 Defnitions of Terms Specifc to This Standard:1.4 This standard does not purport to address all of the3.1.1 cold filter plugging point,nhighest temperature,safety concerns,if any,associated with its use.It is theexpressed in multiples of 1C,at which a given volume of fuelresponsibility of the user of this standard to establish appro-fails to pass through a standardized filtration device in apriate safety and health practices and determine the applica-specifi ed time when cooled under the conditions prescribed inbility of regulatory limitations prior to use.For specifi c hazardthis test method.statements,see Section 7.3.1.2 certifed reference material,na stable petroleumproduct with a method-specific nominal CFPP value estab-2.Referenced Documentslished by a method-specifi c interlaboratory study following2.1 ASTM Standards:RR:D02-1007 guidelines or ISO Guides 34 and 35.7D 2500 Test Method for Cloud Point of Petroleum Oils?D 4057 Practice for Manual Sampling of Petroleum and4.Summary of Test MethodPetroleum Products34.1 A specimen of the sample is cooled under specifiedD 4177 Practice for Automatic Sampling of Petroleum andconditions and,at intervals of 1C,is drawn into a pipet underPetroleum Products3a controlled vacuum through a standard ized wire mesh filter.D 5771 Test Method for Cloud Point of Petroleum ProductsThe procedure is repeated,as the specimen continues to cool,(Optical Detection Stepped Cooling Method)4for each 1C below the first test temperature.Testing isD 5772 Test Method for Cloud Point of Petroleum Productscontinued until the amount of wax crystals that have s