1、Designation: E2690 17aE2690 17b 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 th
2、e 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. Scope1.1 This practice describes procedures for specimen pr
3、eparation and mounting when testing caulks and sealants to assess flamespread and smoke development as surface burning characteristics using Test Method E84.1.1.1 Caulks and sealants up to 8 in. (203.2 mm) in width shall follow the requirements of 7.1.1.1.2 Caulks and sealants in excess of 8 in. (20
4、3.2 mm) in width shall follow the requirements of 7.2.1.1.2.1 Caulks and sealants in excess of 8 in. (203.2 mm) in width can be considered coatings.1.2 This practice applies to caulks and sealants intended for various uses within buildings. The caulks and sealants addressedin this practice are not a
5、ble to be supported by their own structural characteristics during the test.1.2.1 This practice does not apply to adhesives that are used to adhere or bind together surfaces.1.3 Testing is conducted in accordance with Test Method E84.1.4 This practice does not provide pass/fail criteria that can be
6、used as a regulatory tool.1.5 This practice does not apply to materials for which the 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 r
7、esults obtained by using this mounting procedure are confined to the materials themselves 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 inh
8、erently hazardous. Adequate safeguards for personnel and property shall be employed in 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 ref
9、erences notes and footnotes which provide explanatory material. These notes and footnotesshall 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 pr
10、ovided for information only and are not considered standard.1.13 This standard does not 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 applicab
11、ility of regulatorylimitations prior to use.1.13 This standard does not 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, health, and environmental practices and determine the applicab
12、ility ofregulatory limitations prior to use.1.14 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the Worl
13、d Trade Organization Technical Barriers to Trade (TBT) Committee.1 This practice is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.22 on Surface Burning.Current edition approved July 1, 2017Nov. 1, 2017. Published July 2017December
14、 2017. Originally approved in 2010. Last previous edition approved in 2017 asE269017.17a. DOI: 10.1520/E269017A.10.1520/E269017B.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. Be
15、causeit may not be technically possible to adequately depict all changes accurately, ASTM 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
16、 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12. Referenced 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 Intern
17、ational System of Units (SI): The Modernized Metric System3. Terminology3.1 DefinitionsFor 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
18、 refer to the terminologycontained in Terminology C717.3.2 Definitions of Terms Specific 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
19、 form a seal.3.2.3 self-supporting specimen, na specimen that remains in place by its own 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 andinclud
20、ing 8 in. (203.2 mm) in width to assess flame spread index and smoke developed index as 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 p
21、ractice applies only to caulks and sealants from which it is possible to develop specimens 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
22、and mountingprocedures described in this practice, using Test Method E84.5. Significance 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. Th
23、is practice describes, in detail, specimenmounting procedures for those caulks and sealants 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 smo
24、kedeveloped index as surface burning characteristics. This practice describes specimen 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 asso
25、ciated with Test Method E84.6. Conditioning6.1 Following application to the substrate, the specimens used for testing shall be conditioned as described in the section onspecimen conditioning in Test Method E84.7. Specimen Preparation and Mounting7.1 Caulks and Sealants up to 8 in. (203.2 mm) in widt
26、h:7.1.1 Specimens shall consist of two 24.5 6 0.5 ft (7.47 6 0.15 m) long beads or strips of sealant or caulk installed 8 in. (203.2mm) on center down the center of the tunnel. The beads or strips shall be at the maximum width or diameter recommended foruse by the manufacturer, but shall not be less
27、 than 38 in. (9.5 mm).7.1.2 The specimens shall be centered so that they align on the center line of the burner nozzles. See Fig. 1.7.1.3 The caulk or sealant shall be applied directly to a fiber-cement board.7.1.4 Caulks and sealants shall be cured per manufacturers instructions prior to conditioni
28、ng as specified in 6.1.7.2 Caulks and Sealants in Excess of 8 in. (203.2 mm) in width:2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary
29、page on the ASTM website.E2690 17b27.2.1 Determine the surface burning characteristics of caulks and sealants intended to be applied at over 8 in. (203.2 mm) inwidth by using the procedure outlined below.7.2.1.1 The test specimen preparation shall be as follows. All steps shall be completed as speci
30、fied 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 thethickness or at the coverage rate specified in the manufacturers instructions.7.2.1.4
31、 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. Testing of Specimens8.1 Testing shall be conducted using the methodology described in Test Method E84.9. Operator Safety9.
32、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 recommendations are included in Test Method E84.10. Report10.1 Report a detailed description of the specimen being tested.10.2 Repo
33、rt a detailed description of the specimen preparation method used, per Section 7.10.1 Report all the information required in the reporting section of the following within the Test Method E84, includingobservations, graphical results and the values of the flame spread index and of the smoke developed
34、 index in each test. test report:10.1.1 A detailed description of the specimen being tested.10.1.2 A detailed description of the specimen preparation method used, per Section 7.10.1.3 Observations, graphical results, and the values of the flame spread index and of the smoke developed index in each t
35、est.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 expressly advised that determinati
36、on 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 revised, either reapproved or withdr
37、awn.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 attend. If you feel that your c
38、omments 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
39、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:/ 1 Schematic of Specimen PlacementE2690 17b3
