ASTM D6668-2001(2006) Standard Test Method for Discrimination Between Flammability Ratings of F = 0 and F = 1《F=0和F=1的易燃性额定值间的区分的标准试验方法》.pdf

《ASTM D6668-2001(2006) Standard Test Method for Discrimination Between Flammability Ratings of F = 0 and F = 1《F=0和F=1的易燃性额定值间的区分的标准试验方法》.pdf》由会员分享，可在线阅读，更多相关《ASTM D6668-2001(2006) Standard Test Method for Discrimination Between Flammability Ratings of F = 0 and F = 1《F=0和F=1的易燃性额定值间的区分的标准试验方法》.pdf（3页珍藏版）》请在麦多课文档分享上搜索。

1、Designation: D 6668 01 (Reapproved 2006)An American National StandardStandard Test Method forDiscrimination Between Flammability Ratings of F = 0and F = 11This standard is issued under the fixed designation D 6668; the number immediately following the designation indicates the year oforiginal adopti

2、on 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 a means for the discriminationbetween solid and l

3、iquid materials which will not burn in airwhen exposed to a temperature of 1500F (815.5C) for aperiod of 5 min and those which will ignite and burn under thesame conditions.1.2 This test method may be applied to any substance whichis a solid or liquid at ambient temperature and pressure.1.3 The purp

4、ose of this test method is to provide a means forthe classification of the flammability hazard of materials ofhazard degrees (F=0) and (F=1) or both, in accordance with thedefinitions of degrees of flammability hazard as defined byNFPA 704 (par. 3.2.1).1.4 This test method should be used subject to

5、the limita-tions that no single fire hazard property such as flash point,ignition temperature, or the performance under the conditionsof the present method shall be used to describe or appraise thefire hazard or fire risk of a material, product, assembly orsystem under actual fire conditions. Fire h

6、azard propertiesmeasured under controlled laboratory conditions may, never-theless, be employed to describe properly the response ofmaterials, products, assemblies or systems under said con-trolled conditions. Properties measured under controlled labo-ratory conditions may be used as elements of haz

7、ard or riskassessment only when such assessment takes into account all ofthe factors that are pertinent to the evolution of the fire hazardof a given situation.1.5 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI u

8、nits that are provided for information onlyand are not considered standard.1.6 This standard is used to predict or provide a quantitativemeasure of the fire hazard from a specified set of fire conditionsinvolving specific materials, products, or assemblies. Thisassessment does not necessarily predic

9、t the hazard of actualfires which involve conditions other than those assumed in theanalysis.1.7 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 prac

10、tices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 235 Specification for Mineral Spirits (Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)2.2 NFPA Standards:3NFPA 704 Identification of the Hazards of Materials forEmergency R

11、esponse3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 burning, nfor the purposes of this test method,burning shall be defined to include the presence of any visibleflame, sparks or glowing embers when the sample is exposed to1500F (815.5C) for 5 min under the conditions of th

12、e testmethod. Charring withouit visible evidence of flame, sparks, orglowing embers shall not be considered to constitute burning.3.1.2 flammability hazard degree one (F=1), nmaterialsthat will burn in air when exposed to a temperature of 1500F(815.5C) for 5 min under the conditions of this test met

13、hod orwhich, by reason of their flash point, fire point, autoignitiontemperature, or sustained combustibility, would be rated asHazard Degree One regardless of their performance in this testmethod.3.1.3 flammability hazard degree zero (F=0), nmaterialsthat will not burn in air when exposed to a temp

14、erature of1500F (815.5C) for 5 min under the conditions of this testmethod provided that they do not exhibit properties includingflash point, fire point, autoignition, or sustained combustibilitywhich might cause them to be rated or classified as a morehazardous material (that is, F=1 or higher).1Th

15、is test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.11 on Engineering Sciences of High Performance Fluids and Solids.Current edition approved July 1, 2006. Published August 2006. Originallyapproved in

16、2001. Last previous edition approved in 2001 as D 6668 01.2For 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.3Av

17、ailable from National Fire Protection Assoc., 1 Batterymarch Park, Quincy,MA 02269-9101.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Summary of Test Method4.1 Small, measured amounts of the sample are placed on astainless steel

18、 surface heated to 1500F (815.5C). Reactionswhich occur during the 5 min interval, thereafter, are observedand recorded.5. Significance and Use5.1 A material which does not exhibit any evidence ofburning as defined herein under the conditions of the testprocedure may be classified as Flammability De

19、gree of HazardZero material (F=0) provided other properties of the materialare not such as to require a higher degree of classification.6. Test Specimen6.1 Liquid Sample30 mL is sufficient for the performanceof this test method.6.2 Solid Specimens30 g are sufficient for the perfor-mance of this test

20、 method.7. Apparatus7.1 Flask Heater, 750 W with transformer control heater,stepless, repeatable 60.6 W.47.2 Temperature Readout Device, any potentiometric orelectronic device capable of reading the temperature of achromel alumel thermocouple within 61F (0.6C).7.3 Chromel-Alumel Thermocouple, 24 gau

21、ge, welded tocenter of stainless steel planchet.7.4 Stainless Steel Planchet, 26 gauge, 50 mm diameter by12.7 mm deep.7.5 Borosilicate Chimney, 70 mm O.D. by 230 mm highmounted over planchet with 2.5 mm air gap between bottom ofchimney and top of planchet holder surface.7.6 Planchet Holder, ceramic

22、composite capable of with-standing 1500F (815.5C), 127 by 127 mm thick with 54 mmcentrally located hole to hold planchet.7.7 Ceramic Cord, approximately 0.8 mm diameter to bewrapped around planchet, if needed, to hold it firmly in placein the planchet holder.7.8 Hypodermic Syringe, 0.5 mL with 450 m

23、m 26 gaugeneedle. TFE-fluorcarbon tipped plunger is preferred.7.9 Assembled Test Apparatus, see Fig. 1.8. Materials8.1 Mineral Spirits, Specification D 235, Type 1.8.2 Steel Wool.8.3 Absorbent Tissue.9. Procedure9.1 Rinse interior of planchet with mineral spirits, wipe drywith absorbent tissue.4The

24、sole source of supply of the apparatus (Model No. 61600, 750 W, 120 VACwith transformer heat control) known to the committee at this time is PrecisionScientific, 170 Marcel Dr., Winchester, VA 22602. If you are aware of alternativesuppliers, please provide this information to ASTM Headquarters. Your

25、 commentswill receive careful consideration at a meeting of the responsible technicalcommittee,1which you may attend.FIG. 1 Assembled Test ApparatusD 6668 01 (2006)29.2 Set the control transformer to bring the interior surfaceof the planchet to 1500F. Adjust the transformer setting untilthe surface

26、temperature remains at 1500 6 10F (815.5 66C).9.3 Liquid SamplesIntroduce a 0.1 mL specimen on to theheated planchet surface and observe for evidence of burning asdefined in 3.1.1. If no burning is observed, repeat for 0.2 mL,0.5 mL, and 1.0 mL specimens, as required, to establishwhether burning occ

27、urs. If burning is observed for any speci-men size, further investigation with larger specimens is notrequired.9.4 Solid SpecimensIntroduce a 0.1 g specimen on to theheated planchet surface and observe for evidence of burning asdefined by 3.1.1. If no burning is observed, repeat for 0.2, 0.5,and 1.0

28、 g specimens, as required, to establish whether burningoccurs. If burning is observed for any specimen size, furtherinvestigation with larger specimens is not required.9.5 Acomplete test for either liquid or solid specimens shallinclude duplication of 9.1, 9.2, 9.3,or9.4, or a cominationthereof, as

29、may be required to confirm initial findings.NOTE 1This procedure may be conducted at individual temperatureslower than 1500F (815.5C) or at a series of lower temperatures todeterrmine the threshold for burning.Any such variations in test procedureshall be reported.10. Report10.1 Report whether or no

30、t burning as defined in 3.1.1occurs at the test temperature.10.2 If no burning occurs, report that the FlammabilityHazard Rating of the sample is zero (F=0) provided that noconflicting properties of the sample require a higher rating.10.3 If burning occurs, report that the Flammability HazardRating

31、of the sample is one (F=1) provided that no conflictingproperties of the sample require a higher rating.11. Precision and Bias11.1 No information is presented about either precision orbias of Test Method D 6668 for measuring flammability ratingssince the test result is nonquantitative.12. Keywords12

32、.1 burning; flammability hazards; flammability ratingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent ri

33、ghts, 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 five years andif not revised, either reapproved or withdrawn. Your comments are invited either fo

34、r 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 committee, which you may attend. If you feel that your comments have not received a fair hearin

35、g 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).D 6668 01 (2006)3