ASTM_D_5306_-_92_2013.pdf

Designation:D530692(Reapproved 2013)Standard Test Method forLinear Flame Propagation Rate of Lubricating Oils andHydraulic Fluids1This standard is issued under the fixed designation D5306;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.Scope1.1 This test method covers the determination of the linearflame propagation rates of lubricating oils and hydraulic fluidssupported on the surfaces of and impregnated into ceramicfiber media.Data thus generated are to be used for thecomparison of relative flammability.1.2 This test method should be used to measure and describethe properties of materials,products,or assemblies in responseto heat and flame under controlled laboratory conditions andshould not be used to describe or appraise the fire hazard or firerisk of materials,products,or assemblies under actual fireconditions.However,results of this test method may be used aselements of fire risk which takes into account all of the factorsthat are pertinent to an assessment of the fire hazard of aparticular end use.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 Military Specifications:3MIL-H-83282C Hydraulic Fluid,Fire Resistant,SyntheticHydrocarbon Base,Aircraft NATO Code Number H-537MIL-H-46170B Amm.1,Hydraulic Fluid,Rust Inhibited,Fire Resistant,Synthetic Hydrocarbon Base3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 linear flame propagation rate,nthe average quotientof the distance of flame travel and the time required for theflame front to travel that distance.4.Summary of Test Method4.1 A section of a ceramic fiber support medium(string)isimpregnated with the sample under specific conditions.Theimpregnated fiber is placed on a standard support.The sampleis ignited and the time required for the flame front to propagateacross a measured distance is determined by use of a thermo-electric system.The average propagation rate is then calculatedfrom the measured distance of flame travel and the timerequired for the flame front to propagate over that distance.5.Significance and Use5.1 The linear flame propagation rate of a sample is aproperty that is relevant to the overall assessment of theflammability or relative ignitability of fire resistance lubricantsand hydraulic fluids.It is intended to be used as a bench-scaletest for distinguishing between the relative resistance to igni-tion of such materials.It is not intended to be used for theevaluation of the relative flammability of flammable,extremelyflammable,or volatile fuels,solvents,or chemicals.6.Apparatus6.1 Apparatus for measurement of linear flame propagationrates:6.1.1 Open Top Stainless Steel Box,as shown in Fig.1.6.1.2 Recorder,stripchart,fast responses.A zero-centeredrecorder with a 65 mV range and a one-half second full-scaledeflection capacity has been found to be satisfactory.A chartspeed of at least 1 in./min has been used for most studies.6.1.3 Differential Thermocouple Pair,30 gage with barejunctions and double fiberglass wrap insulation,ISA,Type J orType K may be prepared from any premium grade thermo-couple wire.6.1.4 Fume Hood,draft-free when ventilation system is notoperative.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.N0.06 on Fire Resistant Fluids.Current edition approved May 1,2013.Published August 2013.Originallyapproved in 1992.Last previous edition approved in 2007 as D5306 92(2007).DOI:10.1520/D5306-92R13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from DLA Document Services,Bldg.4,Section D,700 RobbinsAve.,Philadelphia,PA 19111-5094,https:/assist.dla.mil/online/start.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.1.5 Weights,50 6 0.01 g,with attached hooks;tworequired.6.1.6 Chrome-Plated Tube or Rod,15 mm diameter by 375mm long.6.1.7 Porcelain or Glass Dish,approximately 135 mLcapacity.7.Materials7.1 Absorbent Paper Wipers,375 by 213 mm.7.2 Ceramic Fiber,4twisted yarn type 390/312,4/5,2.72 ortype 390/312