1、Designation: E2690 101Standard 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 2011.1. Scope1.1 This practice describes proce
3、dures 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 intended tobe applied in excess of 8 in. (203
4、.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-dressed in this practice are not able to b
5、e 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 This practice does not apply to materials
6、 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 mounting procedureare confined to the mater
7、ials 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-guards for personnel and property shall be
8、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. These notes
9、 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 not considered standard.1.13 This stand
10、ard 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 prior to use.2. Referenced Documents2.1 AS
11、TM 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. Terminology3.1 DefinitionsFor definitions of terms
12、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 Terms Specific to This Standard:3.2.1
13、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 place by its own structural characteristic
14、s 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:10.1520/E269010E01.2For referenced AST
15、M 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 Harbor Drive, PO Box C700, West Conshoho
16、cken, 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 index as surface burning charac-teristi
17、cs 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 specimens that when applied tothe sub
18、strate 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. Significance and Use5.1 Building products m
19、ade 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 and sealantswhich are not able to be sup
20、ported 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 specimen preparation and mounting procedur
21、esfor 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 substrate, the specimensused for testing shall
22、 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 installed witheach bead or strip centered on
23、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 be centered so that they align onthe c
24、enter 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 Testing shall be conducted using the methodo
25、logydescribed 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 Method E84.10. Report10.1 Report a detail
26、ed 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 and the values of the flame spread index
27、 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 1012ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item
28、 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 responsible technical commi
29、ttee 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 receive careful consideration at a me
30、eting 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, 100 Barr Harbor Drive,
31、 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 1013
