1、Designation: E2690 102Standard 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 oforiginal adoption or, in the c
2、ase 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.1NOTEEditorial changes were made throughout in January 2011.2NOTEFig. 1 was updated in April 2011.1.
3、Scope1.1 This practice describes procedures for specimen prepa-ration and mounting when testing caulks and sealants intendedto be applied up to 8 in. (203.2 mm) in width to assess flamespread and smoke development as surface burning character-istics using Test Method E84. Caulks and sealants intende
4、d tobe applied in excess of 8 in. (203.2 mm) are to be tested appliedto a substrate so as to completely cover the substrate in a fulltunnel width application of Test Method E84.1.2 This practice applies to caulks and sealants intended forvarious uses within buildings. The caulks and sealants ad-dres
5、sed in this practice are not able to be supported by theirown structural characteristics during the test unless they areapplied to a substrate.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 Thi
6、s practice does not apply 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 The results obtained by using this mount
7、ing procedureare confined to the materials themselves as tested and are notcomparable 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-guard
8、s for personnel and property 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 pro
9、vide 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 re-garded as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are n
10、ot considered standard.1.13 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 determine the applica-bility of regulatory limitations prio
11、r 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 Units (SI): TheModernized Metric System3. Terminology3.
12、1 DefinitionsFor definitions of terms used in this 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 C717.3.2 Definitions of
13、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 specimen, na specimen that remainsin plac
14、e by its own structural characteristics both before andduring the fire test.1This 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 Aug. 15, 2010. Published September 2010. DOI:
15、10.1520/E269010E02.2For 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 page onthe ASTM website.1Copyright ASTM International, 100 Barr Ha
16、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.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 flame spreadindex and smoke developed i
17、ndex 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 sealants fromwhich it is possible to develop
18、 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 practice, using TestMethod E84.5. Signi
19、ficance 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 mounting procedures for those caulks an
20、d 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 characteristics. This prac-tice describes spec
21、imen 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 Following application to the substrat
22、e, 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:7.1.1 Specimens shall consist of two 24.5 6 0.5 ft. (7.47 60.15 m) long beads or strips of sealant or caulk install
23、ed witheach bead or strip centered on the centerline of each gas burnerport for the entire length of the fire test chamber. The beads orstrips shall be at the maximum width or diameter recom-mended for use by the manufacturer, but not be less than38 in.(9.5 mm). See Fig. 1.7.1.2 The specimens shall
24、be centered so that they align onthe center line of the burner port.7.1.3 The caulk or sealant shall be applied directly to afiber-cement board substrate.7.1.4 Caulks and sealants shall be cured per manufacturersinstructions prior to conditioning as specified in 6.1.8. Testing of Specimens8.1 Testin
25、g 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, and notwith the specimen preparation procedure. Safety recommenda-tions are included in Test Met
26、hod E84.10. Report10.1 Report a detailed description 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 an
27、d the values of the flame spread index and of thesmoke developed index in each test.11. Keywords11.1 caulk; fire; fire test; flame spread; plastic; sealants;smoke developedFIG. 1 Schematic of Specimen PlacementE2690 1022ASTM International takes no position respecting the validity of any patent right
28、s asserted in connection 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 t
29、ime by the responsible technical committee and must be reviewed every five years andif not revised, 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
30、 receive careful consideration 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
31、 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. 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 ASTM website (www.astm.org/COPYRIGHT/).E2690 1023
