ASTM C1166-2006 Standard Test Method for Flame Propagation of Dense and Cellular Elastomeric Gaskets and Accessories《致密及多孔弹性衬垫和附件的火焰蔓延标准试验方法》.pdf

1、Designation: C 1166 06Standard Test Method forFlame Propagation of Dense and Cellular ElastomericGaskets and Accessories1This standard is issued under the fixed designation C 1166; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th

2、e 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 a laboratory procedure fordetermining flame propagation characteristics of a dense

3、orcellular elastomeric gasket (such as expansion, lock-strip orcompression gasket) or an accessory (such as a setting block,spacer or shim) when exposed to heat and flame, with nosignificance being attached to such matters as fuel contribution,rate of flame spread, smoke developed, or the nature and

4、temperature of the products of combustion.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are provided forinformation purposes only.1.3 This standard should be used to measure and describethe response of materials, products, or assemblies to heat

5、andflame under controlled conditions and should not be used todescribe or appraise the fire-hazard or fire-risk of materials,products, or assemblies under actual fire conditions. However,results of the test may be used as elements of a fire-hazardassessment or a fire-risk assessment which takes into

6、 accountall of the factors which are pertinent to an assessment of thefire hazard or fire risk of a particular end use.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-pri

7、ate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.5 The committee with jurisdiction over this standard is notaware of any comparable standards published by other orga-nizations.2. Referenced Documents2.1 ASTM Standards:C 717 Terminology of Buil

8、ding Seals and SealantsC 864 Specification for Dense Elastomeric CompressionSeal Gaskets, Setting Blocks, and Spacers3. Terminology3.1 DefinitionsFor definitions of terms used in this stan-dard, see Terminology C 717.3.2 Definitions of Terms Specific to This Standard:3.2.1 dense material, nmaterial

9、that is free of porosity, asdescribed in Specification C 864.4. Summary of Test Method4.1 In this test method, a specimen 13 by 25 by 460 mm (12by 1 by 18 in.) mounted in a vertical position within the testchamber, is exposed to a gas flame at the lower end for 15 minwith dense materials or 5 min wi

10、th cellular materials, andventilated at no more than 18.3 m/min (60 ft/min). The lengthof the flame is measured and provides a numerical value for thepropagation of flame along the specimen.5. Significance and Use5.1 This test method is designed to differentiate the flamepropagation characteristics

11、of dense or cellular elastomericcompounds used in gaskets, setting blocks, shims, or spacers.It is a small scale test which enables the specifier to exerciseengineering judgment in the selection of materials.5.2 In this test method, the specimens are subjected to aspecific laboratory fire test expos

12、ure condition. If different testconditions are substituted or the anticipated end-use conditionsare changed, it may not be possible by or from this test methodto predict changes in the performance characteristics. There-fore, the results are valid only for the fire test exposurecondition described i

13、n this test method.5.3 If the results obtained by this test method are to beconsidered in the total assessment of fire risk, then all pertinentestablished criteria for fire risk assessment developed byASTM Committee E-5 must be included in the consideration.6. Apparatus6.1 The Test Chamber, may be a

14、ny enclosure that willpermit circulation of air past the specimen during burning. Ahood or ventilated spray booth is recommended to remove anynoxious products of combustion, provided the velocity of airpast the specimen does not exceed 18.3 m/min (60 ft/min).1This test method is under the jurisdicti

15、on ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.73 onCompression Seal and Lock Strip Gaskets.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 1991. Last previous edition approved in 2000 as C 1166 00.1Copyright

16、 ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.NOTE 1Air velocities greater than 18.3 m/min (60 ft/min) will havean extinguishing effect upon the flame and will present an unrealisticevaluation of the flame propagation of the compound.6.2 Bun

17、sen Burner, with a barrel nominally 9.5 mm (0.38in.) in diameter.6.3 Natural Gas, used for fuel.6.4 Measuring Device, capable of measuring to 0.1 in.7. Sampling and Test Specimens7.1 Sampling:7.1.1 When the finished product does not lend itself totesting (see Note 2) or to the taking of test specime

18、ns becauseof complicated shape, small size, metal or fabric inserts orother conditions, standard test strips shall be prepared. Thestandard specimens for testing are described in 7.2.NOTE 2A chimney effect caused by lengthwise channels or holes infinished products makes it impossible to obtain unifo

19、rm results usingactual manufactured products.7.1.2 When possible, the completed manufactured product,or a suitable section thereof shall be used for the test.Representative samples of the batch extrusions being examinedshall be selected at random as required.7.2 Test Specimens:7.2.1 The test specime

20、n shall be 13 mm (12 in.) thick, 25mm (1 in.) wide and 460 mm (18 in.) long, made in accordancewith 7.1.7.2.2 The test specimen shall be free of permanent setproducing a curved section within the specimen that will notpermit it to hang vertically. It shall also be free of abnormallyporous sections a

21、nd foreign materials.7.2.3 All test specimens shall be made from the samecompound, same dated batch, and shall have the same apparentdensity and state of cure as the product they represent.7.2.4 This test method requires six test specimens that havebeen cut randomly from the same extrusion labeled R

22、1 throughR6.8. Conditioning8.1 Condition all test specimens at 23.9 6 1.1C (75 6 5F)for at least 24 h prior to testing.9. Procedure9.1 Measure the original length of all test specimens.9.2 Secure the specimen in a vertical position within the testchamber using a ring stand with a clamp positioned at

23、 the topof the specimen. Locate the specimen high enough to permitthe burner to be placed beneath it. Use two wire loops to retainthe position of the sample over the flame. Place one wire loop51 mm (2 in.) from the end to be ignited and the other 127 mm(5 in.) from the end to be ignited. Fasten the

24、wire loops to thestand holding the specimen.9.3 Light and adjust the burner to produce a blue flameapproximately 38 mm (1.5 in.) high. A metal flame gage isrecommended for a consistent height.9.4 Place the lighted burner directly below the specimen sothat the top of the inner cone of the flame just

25、touches thelowest part of the specimen (see Note 3). The burner is toremain in this position for 15 min and 5 min respectively fordense and cellular material dictates, and then shall be extin-guished and removed. If the specimen moves through heatdeformation, the burner needs to be moved so as to ke

26、ep itunder the lowest point of the specimen for the given test time.NOTE 3Every flame, no matter how hot, has a kindling height abovewhich its temperature is too low to kindle the specimen. For the specifiedflame, this height is considerably less than 460 mm (18 in.). Therefore, ifa specimen burns a

27、bove this kindling height, it does so on its own heat ofcombustion and is considered to propagate flame.9.5 Permit the specimen to continue burning until it nolonger propagates flame.9.6 After flame has extinguished, quench specimen withwater (even though specimen may still be glowing).9.7 Remove lo

28、ose chart with a stiff brush.9.8 Measure the remaining unburned length of the speci-men. Consider the unburned length to be that remaining afterthe removal of loose elastomer char that no longer can performfor intended use. This may be uneven, and therefore requirestwo measurements10. Calculation10.

29、1 Calculate the average flame propagation (FP) for R1through R6 according to the following equation:(R1oR1f + R2oR2f + R3oR3fFP 51 R4o2 R4f# 1 R5o2 R5f# 1 R6o2 R6f#!6(1)where:R1o= original R1,R1f= final R1,R2o= original R2,R2f= final R2, etc.11. Report11.1 Include the following information:11.1.1 Id

30、entification of each specimen, R1 through R6,11.1.2 The original length of each test specimen,11.1.3 The average of two measurements resulting from anuneven burn,11.1.4 Astatement as to whether the sample melted, burned,propagated fire through burning droplets, or other method ofdeterioration, and11

31、.1.5 Variation, if any, from the specified test procedure.12. Precision and Bias212.1 Precision:12.1.1 Repeatability (within a given laboratory)The in-terval for four materials tested by four recognized fire testinglaboratories was 0.85 in., 4.7 %. In future use of this testmethod, the difference be

32、tween two results (defined as theaverage of six individual results) obtained in the same labora-tory on the same material will be expected to exceed 0.85 in.,4.7 % of original, only 5 % of the time.12.1.2 Reproducibility (between laboratories)The inter-val for four materials tested by four recognize

33、d fire testinglaboratories is 1.3 in., 7.2 % of original length. In future use of2Supporting data is available fromASTM Headquarters. Request RR: C24-1029.C1166062this test method, the difference between two test results(defined as the average of six individual results) obtained indifferent laborato

34、ries on the same material will be expected toexceed 1.3 in. only 5 % of the time.13. Keywords13.1 elastomer; flame propagation; flammability; gasketASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users

35、of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every fi

36、ve years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical

37、committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C1166063