ASTM D5306-1992(2007) Standard Test Method for Linear Flame Propagation Rate of Lubricating Oils and Hydraulic Fluids《润滑油和液压液的线性传播速率的标准试验方法》.pdf
《ASTM D5306-1992(2007) Standard Test Method for Linear Flame Propagation Rate of Lubricating Oils and Hydraulic Fluids《润滑油和液压液的线性传播速率的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D5306-1992(2007) Standard Test Method for Linear Flame Propagation Rate of Lubricating Oils and Hydraulic Fluids《润滑油和液压液的线性传播速率的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 5306 92 (Reapproved 2007)An American National StandardStandard Test Method forLinear Flame Propagation Rate of Lubricating Oils andHydraulic Fluids1This standard is issued under the fixed designation D 5306; the number immediately following the designation indicates the year oforigina
2、l adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the determination of the linearflame prop
3、agation 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,
4、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 whic
5、h 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 thesaf
6、ety 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:2E 691 Practice for Conducting a
7、n 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. Term
8、inology3.1 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) isimp
9、regnated 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 calcu
10、latedfrom 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 fir
11、e 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 fu
12、els, 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
13、 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.1This test method i
14、s under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.N0.06 on Fire Resistant Fluids.Current edition approved Nov. 1, 2007. Published January 2008. Originallyapproved in 1992. Last previous edition approved in 2002 as D
15、 530692(2002)e1.2For 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 Standardization Documents Ord
16、er Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.1.4 Fume Hood, draft-free when ventilation system is notoperative.6.1.5 We
17、ights,506 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, 3
18、/4, 2.72. Ceramic fiber size used shall be agreedupon by supplier and consumer and shall be specified in testreport.7.3 Ignition Source, any paper book matches or woodenkitchen matches can be used.8. Procedure8.1 Tie small loops in each end of a 500 mm section ofceramic fiber support (string). Place
19、 a few millilitres of thesample to be studied in an evaporating dish. Immerse theceramic fiber support (string) in the liquid sample for 60 s.Avoid immersion of the loops at the end of the string.8.2 While the ceramic fiber support (string) is immersed inthe sample, carefully wrap an absorbent paper
20、 wiper around the15 mm diameter chrome plated rod. Leave one end of the roduncovered by the wiper.8.3 Remove the ceramic fiber support (string) section fromthe liquid sample and attach a 50 g weight to the loop at eachend. Fix the chrome-plated rod with its absorbent paperwrapping in a horizontal po
21、sition and hang the soaked stringsection with attached weights over the unwrapped section ofthe rod. Press down gently on the uppermost weight to causethe soaked string to pass over the bare rod, flexing gently as itmoves. When the lower weight has been drawn up to the rod,reverse the process until
22、the first weight has again been drawnup the rod. Repeat the cycle four times to work the samplethoroughly into the string.8.4 Transfer the string with attached weights to the coveredportion of the chrome-plated rod. Pass the string over theabsorbent paper in the manner described in 8.3. After eachco
23、mplete double cycle, lift the string from the paper, rotate itthrough 180 as it is held taut in a vertical position and thenreplace it on a fresh area of the absorbent medium. Again passthe string over the paper in the manner described in 8.3. Repeatuntil four double cycles have been completed.8.5 P
24、lace the string support and thermocouple holder in adraft-free hood with the ventilation turned off. Level theapparatus with a spirit level. Place the prepared string on thestring supports. The attached weights should be left in place toprovide tension in the string. Adjust the differential thermo-c
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