1、Designation: E2231 18 An American National StandardStandard Practice forSpecimen Preparation and Mounting of Pipe and DuctInsulation Materials to Assess Surface BurningCharacteristics1This standard is issued under the fixed designation E2231; the number immediately following the designation indicate
2、s the 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 specime
3、n prepa-ration and mounting when testing pipe and duct insulationmaterials to assess flame spread and smoke development assurface burning characteristics using Test Method E84.1.2 If the pipe or duct insulation materials to be tested arereflective insulation materials (see 3.2.10 and 3.2.11), themat
4、erials shall be tested using the procedures for specimenpreparation and mounting described in Practice E2599 and notthe procedures described in 6.1 through 6.6.1.3 Testing is conducted with Test Method E84.1.4 This practice does not provide pass/fail criteria that canbe used as a regulatory tool.1.5
5、 Use the values stated in inch-pound units as thestandard, in referee decisions. The values in the SI system ofunits are given in parentheses, for information only; seeIEEE/ASTM SI-10 for further details.1.6 This fire standard cannot be used to provide quantitativemeasures.1.7 Fire testing of produc
6、ts and materials is inherentlyhazardous, and adequate safeguards for personnel and propertyshall be employed in conducting these tests. Fire testinginvolves hazardous materials, operations, and equipment. Thisstandard gives instructions on specimen preparation andmounting, but the fire-test-response
7、 method is given in TestMethod E84. See also Section 8.1.8 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredrequirements of the standard.1.9 This standard does not purpo
8、rt 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 practices and deter-mine the applicability of regulatory limitations prior to use.1.10 This fire standard cannot
9、be used to provide quantita-tive measures.1.11 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 and Recom-mendations issued by the Wo
10、rld Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A390 Specification for Zinc-Coated (Galvanized) SteelPoultry Fence Fabric (Hexagonal and Straight Line)C168 Terminology Relating to Thermal InsulationC1136 Specification for Flexible, Low Per
11、meance VaporRetarders for Thermal InsulationC1224 Specification for Reflective Insulation for BuildingApplicationsC1396/C1396M Specification for Gypsum BoardE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE176 Terminology of Fire StandardsE2599 Practice for Specimen Preparati
12、on and Mounting ofReflective Insulation, Radiant Barrier and Vinyl StretchCeiling Materials for Building Applications to AssessSurface Burning CharacteristicsIEEE/ASTM SI-10 International System of Units (SI) TheModernized Metric System2.2 UL Standards:UL 181 Standard for Safety for Factory-Made Air
13、 Ducts andConnectors31This 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. Originallyapproved in 2002. Last previous edition approved in 2
14、015 as E2231-15. DOI:10.1520/E2231-18.2For 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 page onthe ASTM website.3Available from Underwr
15、iters Laboratories (UL), Corporate Progress, 333Pfingsten Rd., Northbrook, IL 60062.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 s
16、tandardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13. Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice refer to
17、 the terminology contained in Terminology E176.3.2 Definitions of Terms Specific to This Standard:3.2.1 composite, nas related to a pipe or duct insulation,see duct insulation system or pipe insulation system.3.2.2 duct, nas related to heating ventilating, air condi-tioning or exhaust systems, a pas
18、sageway made of sheet metalor other suitable material used for conveying air or other gases.3.2.3 duct insulation system, nas related to fire testing,system intended to insulate and cover, continuously for anextended length, the outside surface of a duct; the system shallhave an insulation core, wit
19、h or without a covering or vaporretarder facing which includes longitudinal closure systems (ifused) and perhaps other duct insulation supplementary mate-rials such as adhesives, fasteners, or tapes (if used).3.2.3.1 DiscussionDuct system components, includingtapes, sealants, and fitting covers, tha
20、t do not cover the ductcontinuously for an extended length, but which are associatedwith the duct insulation system are considered separately (seeduct insulation supplementary materials). An extended lengthis not intended to imply a length of 25 ft, but a length of at least3 ft.3.2.4 duct insulation
21、 supplementary materials, nas re-lated to fire testing, components, including tapes and sealantsused for transverse joints as well as fitting covers that areintermittently spaced, as needed, within the duct insulationsystem, as well as adhesives used to bond the insulation to theduct substrate and t
22、hat do not cover the duct continuously foran extended length.3.2.5 duct lining, nmaterial such as an insulation, coatingor film, including adhesive, used to line the inside surface of aduct.3.2.6 insulation blanket, na relatively flat and flexibleinsulation in coherent sheet form furnished in units
23、of substan-tial area.43.2.7 pipe, nas related to heating, ventilating, or airconditioning systems, a cylindrical conduit for the conveyanceof liquids or semi-solids.3.2.8 pipe insulation system, nas related to fire testing,system intended to insulate and cover, continuously for anextended length, th
24、e outside surface of a pipe; the system shallhave an insulation core, with or without a covering or vaporretarder facing which includes longitudinal closure systems (ifused) and perhaps other pipe insulation supplementary mate-rials such as adhesives, fasteners, or tapes (if used).3.2.8.1 Discussion
25、Pipe system components, includingtapes, sealants, and fitting covers, that do not cover the pipecontinuously for an extended length, but which are associatedwith the pipe insulation system are considered separately (seepipe insulation supplementary materials). An extended lengthis not intended to im
26、ply a length of 25 ft, but a length of at least3 ft.3.2.9 pipe insulation supplementary materials, nas re-lated to fire testing, components, including tapes and sealantsused for transverse joints as well as fitting covers that areintermittently spaced, as needed, within the pipe insulationsystem, as
27、 well as adhesives used to bond the insulation to thepipe substrate and that do not cover the pipe continuously foran extended length.3.2.10 reflective insulation, nthermal insulation consistingof one or more low emittance surfaces bounding one or moreenclosed air spaces.3.2.10.1 DiscussionReflectiv
28、e insulation materials are de-fined in Specification C1224.3.2.11 reflective plastic core insulation, nan insulationmaterial packaged in rolls, that is less than 0.5 in. (12.7 mm)thick, with at least one exterior low emittance surface (0.1 orless) and a core material containing voids or cells.3.2.11
29、.1 DiscussionReflective plastic core insulation ma-terials are one specific type of reflective insulation materials.3.2.12 self-supporting specimen, na specimen that re-mains in place by its own structural characteristics both beforeand during the fire test.4. Summary of Practice4.1 This practice de
30、scribes procedures for specimen prepa-ration and mounting when testing pipe and duct insulationmaterials to assess flame spread and smoke development assurface burning characteristics using Test Method E84.4.2 Pipe or duct insulation systems (or composites related topipe or duct insulation) consist
31、of an insulation core, with orwithout a jacket, and with or without an adhesive. Pipe or ductinsulation systems shall be tested in accordance with thespecimen preparation and mounting procedures described inthis practice, using Test Method E84.4.3 Supplementary materials for pipe or duct insulations
32、ystems, including tapes, joint sealants, and fitting covers, thatare intermittently spaced, shall be tested for flame spread andsmoke development as single-component systems, using TestMethod E84.5. Significance and Use5.1 Pipe and duct insulation systems are often evaluatedwith Test Method E84 to c
33、omply with building or mechanicalcode requirements. This practice describes, in detail, specimenpreparation and mounting procedures for single-componentpipe or duct insulation systems and for multi-component pipeor duct insulation systems.5.2 The material, system, composite, or assembly testedshall
34、be representative of the completed insulation system usedin actual field installations, in terms of the components,including their respective thicknesses.5.3 Pipe and duct insulation systems consist of a variety ofmaterials and constructions.5.4 Some testing laboratories have developed a number ofpr
35、otocols for testing pipe or duct insulation systems whichutilize one generic type of materials, all of them with aninsulation core and a jacket. Those protocols are the origin of4This definition is similar to the definition of “blanket insulation” in Terminol-ogy C168 from committee C16 on Thermal I
36、nsulation.E2231 182this practice, which makes them generic, to reduce materialbias in the standard; they have resulted in the procedurespresented in 6.1. The procedures presented in 6.2 6.5 addressother types of pipe or duct insulation systems.5.5 This practice addresses specimen preparation andmoun
37、ting of systems of the types described in 5.5.1 5.5.3 andtesting of supplementary materials as described in 5.6.5.5.1 Multi-component systems containing an insulationcore and a jacket, with or without adhesive between insulationcore and jacket, not intended to be bonded to a pipe or ductsubstrate. S
38、pecimen preparation and mounting for such sys-tems is described in 6.1 if they are self-supporting and in 6.2 ifthey are not self-supporting.5.5.2 Single component systems, not intended to be bondedto a pipe or duct substrate. Specimen preparation and mountingfor such systems is described in 6.3 if
39、they are self-supportingand in 6.4 if they are not self-supporting.5.5.3 Systems intended to be bonded to a pipe or ductsubstrate. Specimen preparation and mounting for such sys-tems is described in 6.5.5.5.4 Reflective insulation materials (see 3.2.10 and 3.2.11)intended to be used as pipe or duct
40、insulation materials andinstalled with an air gap shall be tested using the procedures forspecimen preparation and mounting procedures described inPractice E2599. Reflective insulation materials intended to beused as pipe or duct insulation materials and installed withoutan air gap shall be tested u
41、sing the specimen preparation andmounting procedures described in Section 6 of this practice.5.5.5 Specimen preparation and mounting procedures forsystems not described in this practice shall be added as theinformation becomes available.5.6 Supplementary Materials:5.6.1 It is recognized that supplem
42、entary materials for pipeor duct insulation systems are normally able to generate heat,flame or smoke. Thus, the fire safety of the entire systemdepends, at least to some extent, on the fire performance ofsupplementary materials. Consequently, the fire-test-responsecharacteristics of all supplementa
43、ry materials shall be assessedto obtain a full assessment of the fire-test-response of the pipeor duct insulation system. See Appendix X1.5.6.2 Supplementary materials are often present intermit-tently spaced, and not for an extended length, in a pipe or ductinsulation system. Thus, it is not always
44、 possible to suitablytest them in conjunction with a pipe or duct insulation system.5.6.3 Testing of Supplementary MaterialsSupplementarymaterials that have not been fully tested in conjunction with thepipe or duct insulation system, in accordance with Section 6,shall be tested for flame spread and
45、smoke development assingle-component systems, in accordance with Test MethodE84.5.7 The limitations for this procedure are those associatedwith Test Method E84.6. Specimen Preparation and Mounting6.1 Self-supporting multi-component systems, not intendedto be bonded to a pipe or duct substrate:56.1.1
46、 Hollow cylindrical insulation core inside a jacket, witha longitudinal joint system, to be used without adhesivebetween jacket and insulation core:6.1.1.1 In this construction, the insulation board specimens,20 to 24 in. (510 to 610 mm) by the appropriate length, shallbe produced in a flat cross-se
47、ction with the jacket (facing) witha seam created at the approximate longitudinal centerline usingthe same method of closure used in actual field installations.The jacket (facing) shall be mechanically attached to theinsulation core using 0.5 in. (13 mm) divergent point steel5The specimen preparatio
48、n and mounting procedures in 6.1, including poten-tially slitting the facing or jacket, mirror those used by Underwriters Laboratories,and described in their documents “BRER GuideInfoPipe and EquipmentCoveringsBuilding Materials (Surface Burning Characteristics)” and “BIYRGuideInfoAcoustical Materia
49、lsBuilding Materials (Surface Burning Charac-teristics).” Similar concepts are also used in the testing of Factory-made Air Ductsand Air Connectors by Test Method E84 in UL 181.FIG. 1 Insulation and Jacket with No Adhesive (see 6.1.1.1)E2231 183flared staples. The staples shall be applied, around the perim-eter of the board, at 6 6 3 in. (152 6 76 mm) on centerspacing, as well as adjacent to and along both sides of thelongitudinal seam, at approximately 1 in. from the seam (seeFig. 1).6.1.1.2 Mount the specimens on the ledges of the TestMethod E84 furna
