1、Designation: E2690 102E2690 17 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
2、 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 NOTEEditorial changes were made throughout in January 2011.2
3、NOTEFig. 1 was updated in April 2011.1. Scope1.1 This practice describes procedures for specimen preparation and mounting when testing caulks and sealants intended to beapplied up to 8 in. (203.2 mm) in width to to assess flame spread and smoke development as surface burning characteristics usingTes
4、t Method E84. Caulks and sealants intended to be applied in excess of 8 in. (203.2 mm) are to be tested applied to a substrateso as to completely cover the substrate in a full tunnel width application of Test Method E84.1.1.1 Caulks and sealants up to 8 in. (203.2 mm) in width shall follow the requi
5、rements of 7.1.1.1.2 Caulks and sealants in excess of 8 in. (203.2 mm) in width shall follow the requirements of 7.2.1.2 This practice applies to caulks and sealants intended for various uses within buildings. The caulks and sealants addressedin this practice are not able to be supported by their ow
6、n structural characteristics during the test unless they are applied to asubstrate.test.1.3 Testing is conducted in accordance with Test Method E84.1.4 This practice does not provide pass/fail criteria that can be used as a regulatory tool.1.5 This practice does not apply to materials for which the
7、test specimen does not remain in place before and during the testuntil maximum flame propagation has occurred.1.6 This practice is not for system evaluation. It is for the comparison of the materials only.1.7 The results obtained by using this mounting procedure are confined to the materials themsel
8、ves as tested and are notcomparable to those obtained with materials that are tested in a full tunnel width application.1.8 This fire standard cannot be used to provide quantitative measures.1.9 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in
9、 conducting thesetests.1.10 This standard gives instructions on specimen preparation and mounting, but the fire-test-response method is given in TestMethod E84. See also Section 9.1.11 The text of this standard references notes and footnotes which provide explanatory material. These notes and footno
10、tesshall not be considered requirements of the standard.1.12 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.13 This standard does no
11、t purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.14 This international standard was devel
12、oped in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.1 This practice is un
13、der the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.22 on Surface Burning.Current edition approved Aug. 15, 2010May 15, 2017. Published September 2010May 2017. Originally approved in 2010. Last previous edition approved in 2010 asE2690102
14、. DOI: 10.1520/E269010E02.10.1520/E269017.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, AS
15、TM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12. Ref
16、erenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsE84 Test Method for Surface Burning Characteristics of Building MaterialsE176 Terminology of Fire StandardsIEEE/ASTM SI-10 International System of Units (SI): The Modernized Metric System3. Terminology3.1 Definitions
17、For definitions of terms used in this practice associated with fire issues, refer to the terminology contained inTerminology E176. For definitions of terms used in this practice associated with caulks and sealants refer to the terminologycontained in Terminology C717.3.2 Definitions of Terms Specifi
18、c to This Standard:3.2.1 bead, nin building construction, a strip of applied sealant, glazing compound or putty.3.2.2 sealant, nin building construction, a material that has the adhesive and cohesive properties to form a seal.3.2.3 self-supporting specimen, na specimen that remains in place by its o
19、wn structural characteristics both before and duringthe fire test.4. Summary of Practice4.1 This practice describes procedures for specimen preparation and mounting when testing caulks and sealants up to andincluding 8 in. (203.2 mm) in width to assess flame spread index and smoke developed index as
20、 surface burning characteristicsusing Test Method E84. Caulks and sealants in excess of 8 in. (203.2 mm) are to be tested in full coverage as applied to fiber cementboard as described in Test Method E84.4.2 This practice applies only to caulks and sealants from which it is possible to develop specim
21、ens that when applied to thesubstrate are self-supporting by their own structural characteristics.4.3 The caulks and sealants addressed in this practice shall be tested in accordance with the specimen preparation and mountingprocedures described in this practice, using Test Method E84.5. Significanc
22、e and Use5.1 Building products made with caulks and sealants are often used for applications for which Test Method E84 is used forcompliance with building code, life safety code or mechanical code requirements. This practice describes, in detail, specimenmounting procedures for those caulks and seal
23、ants which are not able to be supported by their own structural characteristics duringthe test.5.2 Codes are often silent with regard to testing caulks and sealants for the assessment of flame spread index and smokedeveloped index as surface burning characteristics. This practice describes specimen
24、preparation and mounting procedures for suchmaterials and products.5.3 The material shall be representative of the materials used in actual field installations.5.4 The limitations for this procedure are those associated with Test Method E84.6. Conditioning6.1 Following application to the substrate,
25、the specimens used for testing shall be conditioned as described in the section onspecimen conditioning in Test Method E84.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, ref
26、er to the standards Document Summary page on the ASTM website.FIG. 1 Schematic of Specimen PlacementE2690 1727. Specimen Preparation and Mounting7.1 Caulks and Sealants: Sealants up to 8 in. (203.2 mm) in width:7.1.1 Specimens shall consist of two 24.5 6 0.5 ft.ft (7.47 6 0.15 m) long beads or strip
27、s of sealant or caulk installed with eachbead or strip centered on the centerline of each gas burner port for the entire length of the fire test chamber. 8 in. (203.2 mm) oncenter down the center of the tunnel. The beads or strips shall be at the maximum width or diameter recommended for use by them
28、anufacturer, but shall not be less than 38 in. (9.5 mm). See Fig. 1.7.1.2 The specimens shall be centered so that they align on the center line of the burner port. nozzles. See Fig. 1.7.1.3 The caulk or sealant shall be applied directly to a fiber-cement board substrate.board.7.1.4 Caulks and sealan
29、ts shall be cured per manufacturers instructions prior to conditioning as specified in 6.1.7.2 Caulks and Sealants in Excess of 8 in. (203.2 mm) in width:7.2.1 Determine the surface burning characteristics of caulks and sealants intended to be applied at over 8 in. (203.2 mm) inwidth by using the pr
30、ocedure outlined below.7.2.1.1 The test specimen preparation shall be as follows. All steps shall be completed as specified 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
31、cement board up the ledges, in thethickness or at the coverage rate specified in the manufacturers instructions.7.2.1.4 Cure the caulk or sealant prior to testing.7.2.1.5 The test specimen shall comply with the requirements of Section 6 of Test Method E84 and cover the full width of thetunnel.8. Tes
32、ting of Specimens8.1 Testing shall be conducted using the methodology described in Test Method E84.9. Operator Safety9.1 The primary concerns for operator safety are associated with the fire-test response procedure, Test Method E84, and not withthe specimen preparation procedure. Safety recommendati
33、ons are included in Test Method E84.10. Report10.1 Report a detailed description of the specimen being tested.10.2 Report a detailed description of the specimen preparation method used, per Section 7.10.3 Report all the information required in the reporting section of Test Method E84, including obse
34、rvations, graphical resultsand the values of the flame spread index and of the 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 con
35、nection with any item mentionedin this standard. Users 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 respon
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37、onsideration at a meeting of theresponsible technical 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, 10
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