1、Designation: C728 05 (Reapproved 2010)Standard Specification forPerlite Thermal Insulation Board1This standard is issued under the fixed designation C728; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers the composition and physica
3、lproperties for perlite thermal insulation board used principallyabove structural roof decks and as a base for built-up, modified,and elastomeric membrane roofing in building construction.1.2 The use of thermal insulation materials covered by thisspecification may be regulated by building codes or o
4、theragencies that address fire performance, or both. The fireperformance of the material should be addressed throughstandard fire test methods established by the appropriategoverning documents.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses ar
5、e mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 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
6、and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following standards, of the issue in effect on thedate of material purchase, form a part of this specification tothe extent specified herein:2.2 ASTM Standards:2C165 Test Metho
7、d for Measuring Compressive Propertiesof Thermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC203 Test Methods for Breaking Load and Flexural Prop-ert
8、ies of Block-Type Thermal InsulationC209 Test Methods for Cellulosic Fiber Insulating BoardC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC1289 Specification for Faced Rigid
9、Cellular Polyisocya-nurate Thermal Insulation BoardE84 Test Method for Surface Burning Characteristics ofBuilding Materials3. Terminology3.1 For complete descriptions of terms used in this specifi-cation, refer to Terminology C168.4. Classification4.1 Perlite thermal insulation board is classified a
10、s follows:4.1.1 Type 1, Roof Insulation BoardThe12 in. (13 mm)thick version of this product is available only to manufacturersof laminated rigid foam products as specified in SpecificationC1289.4.1.2 Type 2, Roof Cover/Recover BoardThis is usedprimarily as a field-applied cover board over other roof
11、insulations or in reroofing applications.5. Ordering Information5.1 Orders shall at least include the following information:5.1.1 Title and designation Specification C728.5.1.2 Product name, nominal thickness and dimensions.5.1.3 Quantity of material ordered.5.1.4 Manufacturers name, address, and te
12、lephone number.6. Materials and Manufacture6.1 CompositionThe basic material of the insulationboard shall be perlite expanded by the application of heat toform glassy, cellular aggregates. The insulation board shall becomposed of expanded perlite and fibers formed into rigid, flat,rectangular units
13、with a suitable sizing material incorporated in1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.22 onOrganic and Nonhomogeneous Inorganic Thermal Insulations.Current edition approved March 1, 2010. Published
14、 March 2010. Originallyapproved in 1972. Last previous edition approved in 2005 as C72805. DOI:10.1520/C0728-05R10.2For 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 t
15、he standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.the product. It may have on one or both surfaces a facing orcoating to prevent excessive hot bitumen strike-in duringroofing instal
16、lation.6.2 LaminationThe finished board may be either single-ply or multiple-ply. When multiple-ply boards are supplied, asuitable adhesive shall be used to join the plies.7. Physical Properties7.1 Thermal ResistancePerlite thermal insulation boardsshall conform to the following thermal resistances:
17、Nominal Thicknessin. (mm)Thermal Resistance,Fhft2/btu (Km2/W)Type 1 Type 212 (13) 1.4 (0.25) 1.3 (0.23)34 (19) 2.0 (0.35) .1 (25) 2.7 (0.48) .112 (38) 4.1 (0.72) .2 (51) 5.4 (0.95) .212 (64) 6.5 (1.1) .3 (76) 8.1 (1.4) .7.1.1 Nominal thickness is the thickness of insulation re-quired to obtain the d
18、esired resistance value and may be moreor less than the thicknesses shown in 7.1. See 8.1 fortolerances.7.1.2 Insulation boards having thermal resistances otherthan those values listed may be supplied as agreed upon bypurchaser and seller.7.2 The insulation board shall further conform to the physi-c
19、al requirements shown in Table 1.8. Standard Dimensions and Tolerances8.1 The dimensions and tolerances shall conform to thoselisted below. Other dimensions may be supplied as agreed uponby purchaser and seller.Dimensions, in. (mm) Tolerance, in. (mm)Length, 36 (915), 48 (1220) 72 (1830), 96 (2440)
20、+14 (6)18 (3)Width, 24 (610), 48 (1220) +14 (6)18 (3)Thickness,12 to 3, (13 to 76), incl 6116 (1.6)8.1.1 Board squareness shall be within required tolerance ifthe two diagonal measurements of the board differ by no morethan14 in. (6 mm).8.2 The fabrication of tapered perlite roof insulation boardpro
21、ducts shall be acceptable if dimension and installationspecifications are agreed upon between buyer and seller.9. Workmanship, Finish, and Appearance9.1 The surface of the board shall be clean, dry, and free ofvisual defects that will adversely affect the service quality.Edges shall be square.10. Sa
22、mpling10.1 Unless otherwise specified, sampling for qualificationand inspection tests, if required, shall be in accordance withPractice C390.11. Test Methods11.1 Thermal ResistanceTest Method C177 or C518 at amean temperature of 75 6 2F (24 6 1C) and a minimumtemperature difference of 40F (22C). In
23、the event of chal-lenge, Test Method C177 shall be the referee method.11.2 Compressive StrengthTest Method C165, ProcedureA, at a crosshead speed of 0.05 in./min for all thicknesses.11.3 Tensile Strength Perpendicular to the SurfaceSection 12 on Tensile Strength Perpendicular to Surface of TestMetho
24、ds C209.11.4 Flexural StrengthTest Methods C203, Method I,Procedure D, except test at a strain rate of 2 in./min using 3 in.(76 mm) wide specimens on a 10 in. (254 mm) span.11.5 Flame Spread ClassificationTest Method E84 in theevent that surface burning characteristics are required.11.6 Water Absorp
25、tionWater Absorption section of TestMethods C209.11.7 ThicknessThickness section of Test Methods C209.12. Qualification and Inspection12.1 Qualification tests shall be run on the physical require-ments given in 7.1 and 7.2.12.2 Inspection requirements are given in 8.1.13. Rejection13.1 Failure to co
26、nform to any of the requirements of thisspecification shall constitute grounds for rejection. In case ofrejection, the seller shall have the right to reinspect the rejectedshipment and resubmit the lot after removal of that portion notconforming to the specified requirements.14. Packaging and Packag
27、e Marking14.1 PackagingUnless otherwise specified, boards shallbe packaged in the manufacturers standard commercial con-tainers. Special packaging shall be provided when agreed to inwriting between purchaser and seller.14.2 MarkingUnless otherwise specified, each containershall be plainly marked wit
28、h the suppliers name, address,telephone number, board dimensions, quantity, and the cover-age area per container. Additional marking shall be providedwhen agreed to in writing between purchaser and seller.15. Keywords15.1 cover/recover board; laminated rigid foam board; per-lite; perlite thermal ins
29、ulation board; roof insulation; thermalinsulationTABLE 1 Physical RequirementsProperty Units Type 1 Type 2Density lb/ft3(kg/m3) 8 (128) min 10 (160) minCompressive strength at5 % consolidationpsi (kPa) 20(138) min 20 (138) minTensile strength,perpendicularlbf/ft2(kPa) 575 (27.5) min 800 (38.3) minFl
30、exural strength psi (kPa) 40 (276) min 60 (414) minWater absorption volume % 1.5 max 3.5 maxC728 05 (2010)2ASTM 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 th
31、at 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 reappr
32、oved 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. If you f
33、eel 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. Individual re
34、prints (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/).C728 05 (2010)3
