1、Designation: E2688 16 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 and health practices and dete
9、rmine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards: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
10、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 thin tapes refer to TerminologyC717.3.2
11、 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 prepa-ration and mounting when testing
12、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 MethodE84.1This practice is under the jurisdiction of ASTM Committee E05 on FireStandards and is the
13、 direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved July 1, 2016. Published July 2016. Originally approvedin 2010. Last previous edition approved in 2010 as E2668-10. DOI: 10.1520/E2688-16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orco
14、ntact 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 States14.2 This practice app
15、lies 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 mounting pro-cedures described in this practice, using Te
16、st 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 describes, in detail, specimen mountingprocedures for those tapes
17、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 practice describes specimenpreparation and mounting proced
18、ures 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 used for testing shall be conditioned asdescribed in the se
19、ction 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 used only on metal/foilsufaces, apply to sheet metal not less
20、 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 Tapes manufactured in widths less than full tunnel widthsh
21、all 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 testing shall be conducted using the methodologydescribed in Te
22、st 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 Method E84.10. Report10.1 Report a detailed description of t
23、he 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 thesmoke de
24、veloped index in each test.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 advised that determination
25、 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 withdraw
26、n. 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 co
27、mments 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 o
28、r 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:/ 162
