1、Designation: E2688 18 An American National StandardStandard Practice forSpecimen Preparation and Mounting of Tapes to AssessSurface Burning Characteristics1This standard is issued under the fixed designation E2688; 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice describes a procedure for specimen prepa-ration and mounting
3、 when testing tapes to assess flame spreadand smoke development as surface burning characteristicsusing Test Method E84. Tapes are to be tested in full coverageas applied to fiber cement board as described in Test MethodE84.1.2 This practice applies to tapes intended for various useswithin buildings
4、. The tapes addressed in this practice are notable to be supported by their own structural characteristicsduring the test.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 a
5、pply to materials for which thetest specimen does not 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 Use the values stated in inch-pound units as thestandard, in
6、referee decisions. The values in the SI system ofunits are given in parentheses, for information only; seeIEEE/ASTM SI-10 for further details.1.8 This fire standard cannot be used to provide quantitativemeasures.1.9 Fire testing is inherently hazardous. Adequate safe-guards for personnel and propert
7、y shall be employed inconducting these tests.1.10 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.
8、These notes and footnotesshall not be considered requirements of the standard.1.12 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, health, and environmental pr
9、actices and deter-mine the applicability of regulatory limitations prior to use.1.13 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides
10、 and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE176 Terminology of Fire Standards
11、IEEE/ASTM SI-10 International System of Units (SI): TheModern Metric System3. Terminology3.1 Definitions:For definitions of terms used in this practiceand associated with fire issues, refer to the terminologycontained in Terminology E176. For definitions of terms usedin this practice associated with
12、 thin tapes refer to TerminologyC717.3.2 Definitions of Terms Specific to This Standard:3.2.1 self-supporting specimen, 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
13、 prepa-ration and mounting when testing tapes to assess flame spread1This practice is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved March 1, 2018. Published April 2018. Originallyapprov
14、ed in 2010. Last previous edition approved in 2016 as E2668-16. DOI:10.1520/E2688-18.2For 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
15、page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for
16、 theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1and smoke development as surface burning characteristicsusing Test Method E84. Tapes are to be tested in full coverageas applied to fiber cement
17、board as described in Test MethodE84.4.2 This practice applies only to those tapes from which it isnot possible to develop specimens that are self-supporting bytheir own structural characteristics.4.3 The tapes addressed in this practice shall be tested inaccordance with the specimen preparation and
18、 mounting pro-cedures described in this practice, using Test Method E84.5. Significance and Use5.1 Building products made with tapes are often used forapplications for which Test Method E84 is used for compliancewith building, life safety code or mechanical code require-ments. This practice describe
19、s, in detail, specimen mountingprocedures for those tapes which are not able to be supportedby their own structural characteristics during the test.5.2 Codes are often silent with regard to testing tapes for theassessment of flame spread and smoke development as surfaceburning characteristics. This
20、practice describes specimenpreparation and mounting procedures for such materials andproducts.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 The specimens u
21、sed for testing shall be conditioned asdescribed in the section on specimen conditioning in TestMethod E84.7. Specimen Preparation and Mounting7.1 The tape shall be applied directly to a fiber-cementboard using only the manufacturer applied tape adhesive fortesting. If the tape is intended to be use
22、d only on metal/foilsufaces, apply to sheet metal not less than 0.016 in. (0.4 mm)thick.7.2 When there is a concern over adhesion to the fibercement board, it is permissible to use nails or staples to holdthe tape in place. No more than one staple or nail per 2 ft. (610mm) of tape shall be used.7.3
23、Tapes manufactured in widths less than full tunnel widthshall be butted edge to edge to form the full tunnel width.Seams shall run the length of the tunnel.7.4 Tapes are to be tested in full coverage as applied to fibercement board as described in Test Method E84.8. Testing of Specimens8.1 All testi
24、ng shall be conducted using the methodologydescribed in Test Method E84.9. Operator Safety9.1 The primary concerns for operator safety are associatedwith the fire-test-response procedure, Test Method E84, andnot with the specimen preparation procedure. Safety recom-mendations are included in Test Me
25、thod E84.10. Report10.1 Report the following within the Test Method E84 testreport:10.1.1 A detailed description of the specimen being tested.10.1.2 A detailed description of the specimen preparationmethod used, per Section 7.10.1.3 Observations, graphical results and the values of theflame spread i
26、ndex and of the smoke developed index in eachtest.11. Keywords11.1 fire test; flame spread; smoke developed; tapesASTM 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 adv
27、ised 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 revised, either
28、 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 attend. I
29、f 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. Indivi
30、dual 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:/ 182
