1、Designation: E2690 17a An American National StandardStandard Practice forSpecimen Preparation and Mounting of Caulks and Sealantsto Assess Surface Burning Characteristics1This standard is issued under the fixed designation E2690; the number immediately following the designation indicates the year of
2、original 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 practice describes procedures for specimen prepa-ratio
3、n and mounting when testing caulks and sealants to assessflame spread and smoke development as surface burningcharacteristics using Test Method E84.1.1.1 Caulks and sealants up to 8 in. (203.2 mm) in widthshall follow the requirements of 7.1.1.1.2 Caulks and sealants in excess of 8 in. (203.2 mm) in
4、width shall follow the requirements of 7.2.1.2 This practice applies to caulks and sealants intended forvarious uses within buildings. The caulks and sealants ad-dressed in this practice are not able to be supported by theirown structural characteristics during the test.1.2.1 This practice does not
5、apply to adhesives that are usedto adhere or bind together surfaces.1.3 Testing is conducted in accordance with Test MethodE84.1.4 This practice does not provide pass/fail criteria that canbe used as a regulatory tool.1.5 This practice does not apply to materials for which thetest specimen does not
6、remain in place before and during thetest until maximum flame propagation has occurred.1.6 This practice is not for system evaluation. It is for thecomparison of the materials only.1.7 The results obtained by using this mounting procedureare confined to the materials themselves as tested and are not
7、comparable to those obtained with materials that are tested ina full tunnel width application.1.8 This fire standard cannot be used to provide quantitativemeasures.1.9 Fire testing is inherently hazardous. Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.1
8、0 This standard gives instructions on specimen prepara-tion and mounting, but the fire-test-response method is given inTest Method E84. See also Section 9.1.11 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotesshall not be considered
9、 requirements of the standard.1.12 The values stated in inch-pound units are to be re-garded as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.13 This standard does not purport to address all o
10、f 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.1.14 This international standard was developed in accor-dance with
11、 internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:
12、2C717 Terminology of Building Seals and SealantsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE176 Terminology of Fire StandardsIEEE/ASTM SI-10 International System of Units (SI): TheModernized Metric System3. Terminology3.1 DefinitionsFor definitions of terms used in this
13、prac-tice associated with fire issues, refer to the terminologycontained in Terminology E176. For definitions of terms usedin this practice associated with caulks and sealants refer to theterminology contained in Terminology C717.1This practice is under the jurisdiction of ASTM Committee E05 on Fire
14、Standards and is the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved July 1, 2017. Published July 2017. Originally approvedin 2010. Last previous edition approved in 2017 as E269017. DOI: 10.1520/E269017A.2For referenced ASTM standards, visit the ASTM website,
15、 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThi
16、s international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (T
17、BT) Committee.13.2 Definitions of Terms Specific to This Standard:3.2.1 bead, nin building construction, a strip of appliedsealant, glazing compound or putty.3.2.2 sealant, nin building construction, a material thathas the adhesive and cohesive properties to form a seal.3.2.3 self-supporting specime
18、n, na specimen that remainsin place by its own structural characteristics both before andduring the fire test.4. Summary of Practice4.1 This practice describes procedures for specimen prepa-ration and mounting when testing caulks and sealants up to andincluding 8 in. (203.2 mm) in width to assess fl
19、ame spreadindex and smoke developed index as surface burning charac-teristics using Test Method E84. Caulks and sealants in excessof 8 in. (203.2 mm) are to be tested in full coverage as appliedto fiber cement board as described in Test Method E84.4.2 This practice applies only to caulks and sealant
20、s fromwhich it is possible to develop specimens that when applied tothe substrate are self-supporting by their own structural char-acteristics.4.3 The caulks and sealants addressed in this practice shallbe tested in accordance with the specimen preparation andmounting procedures described in this pr
21、actice, using TestMethod E84.5. Significance and Use5.1 Building products made with caulks and sealants areoften used for applications for which Test Method E84 is usedfor compliance with building code, life safety code or mechani-cal code requirements. This practice describes, in detail,specimen mo
22、unting procedures for those caulks and sealantswhich are not able to be supported by their own structuralcharacteristics during the test.5.2 Codes are often silent with regard to testing caulks andsealants for the assessment of flame spread index and smokedeveloped index as surface burning character
23、istics. This prac-tice describes specimen preparation and mounting proceduresfor such materials and products.5.3 The material shall be representative of the materialsused in actual field installations.5.4 The limitations for this procedure are those associatedwith Test Method E84.6. Conditioning6.1
24、Following application to the substrate, the specimensused for testing shall be conditioned as described in the sectionon specimen conditioning in Test Method E84.7. Specimen Preparation and Mounting7.1 Caulks and Sealants up to 8 in. (203.2 mm) in width:7.1.1 Specimens shall consist of two 24.5 6 0.
25、5 ft (7.47 60.15 m) long beads or strips of sealant or caulk installed 8 in.(203.2 mm) on center down the center of the tunnel. The beadsor strips shall be at the maximum width or diameter recom-mended for use by the manufacturer, but shall not be less than38 in. (9.5 mm).7.1.2 The specimens shall b
26、e centered so that they align onthe center line of the burner nozzles. See Fig. 1.7.1.3 The caulk or sealant shall be applied directly to afiber-cement board.7.1.4 Caulks and sealants shall be cured per manufacturersinstructions prior to conditioning as specified in 6.1.7.2 Caulks and Sealants in Ex
27、cess of 8 in. (203.2 mm) inwidth:7.2.1 Determine the surface burning characteristics ofcaulks and sealants intended to be applied at over 8 in. (203.2mm) in width by using the procedure outlined below.7.2.1.1 The test specimen preparation shall be as follows.All steps shall be completed as specified
28、 in the manufacturersinstructions.7.2.1.2 Mix the caulk or sealant, if applicable.7.2.1.3 Apply the caulk or sealant to fiber-cement board,across the entire width of the fiber cement board up the ledges,in the thickness or at the coverage rate specified in themanufacturers instructions.7.2.1.4 Cure
29、the caulk or sealant prior to testing.7.2.1.5 The test specimen shall comply with the require-ments of Section 6 of Test Method E84 and cover the full widthof the tunnel.8. Testing of Specimens8.1 Testing shall be conducted using the methodologydescribed in Test Method E84.9. Operator Safety9.1 The
30、primary concerns for operator safety are associatedwith the fire-test response procedure, Test Method E84, and notwith the specimen preparation procedure. Safety recommenda-tions are included in Test Method E84.FIG. 1 Schematic of Specimen PlacementE2690 17a210. Report10.1 Report a detailed descript
31、ion of the specimen beingtested.10.2 Report a detailed description of the specimen prepara-tion method used, per Section 7.10.3 Report all the information required in the reportingsection of Test Method E84, including observations, graphicalresults and the values of the flame spread index and of the
32、smoke developed index in each test.11. Keywords11.1 caulk; fire; fire test; flame spread; plastic; sealants;smoke developedASTM 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 expr
33、essly 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 five years andif not revise
34、d, 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 committee, which you may
35、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 State
36、s. 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 17a3
