1、Designation: C 728 05Standard Specification forPerlite Thermal Insulation Board1This standard is issued under the fixed designation C 728; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in paren
2、theses indicates the year of last reapproval. Asuperscript epsilon (e) 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 physicalproperties for
3、 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 otheragencies th
4、at 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 the standard. The values given in parentheses are forinform
5、ation only.1.4 The following safety hazards caveat pertains only to thetest methods, Section 11, in this specification: This standarddoes not purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate s
6、afety and health practicesand determine the applicability of regulatory limitations priorto 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:2C 165 Test M
7、ethod for Measuring Compressive Propertiesof Thermal InsulationsC 168 Terminology Relating to Thermal InsulationC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC 203 Test Methods for Breaking Load and Flexural P
8、rop-erties of Block-Type Thermal InsulationC 209 Test Methods for Cellulosic Fiber Insulating BoardC 390 Practice for Sampling and Acceptance of PreformedThermal Insulation LotsC 518 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Heat Flow Met
9、er ApparatusC 1289 Specification for Faced Rigid 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 C 168.4. Classification4.
10、1 Perlite thermal insulation board is classified as 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 SpecificationC 1289.4.1.2 Type 2, Roof Cover/Recover BoardThis is usedprima
11、rily as a field-applied cover board over other roofinsulations or in reroofing applications.5. Ordering Information5.1 Orders shall at least include the following information:5.1.1 Title and designation Specification C 728.5.1.2 Product name, nominal thickness and dimensions.5.1.3 Quantity of materi
12、al ordered.5.1.4 Manufacturers name, address, and telephone 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 a
13、nd fibers formed into rigid, flat,rectangular units 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 Insulatio
14、ns.Current edition approved May 1, 2005. Published May 2005. Originallyapproved in 1972. Last previous edition approved in 1997 as C 728 97e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards vol
15、ume information, refer to the 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 str
16、ike-in duringroofing installation.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 fol
17、lowing thermal resistances: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 insulatio
18、n re-quired to obtain the desired 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 fur
19、ther conform to the physi-cal 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 (
20、1220) 72 (1830), 96 (2440) +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 perli
21、te roof insulation boardproducts 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.E
22、dges shall be square.10. Sampling10.1 Unless otherwise specified, sampling for qualificationand inspection tests, if required, shall be in accordance withPractice C 390.11. Test Methods11.1 Thermal ResistanceTest Method C 177 or C 518 at amean temperature of 75 6 2F (24 6 1C) and a minimumtemperatur
23、e difference of 40F (22C). In the event of chal-lenge, Test Method C 177 shall be the referee method.11.2 Compressive StrengthTest Method C 165, 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 Perpe
24、ndicular to Surface of TestMethods C 209.11.4 Flexural StrengthTest Methods C 203, 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 E84in theevent that surface burning characteristi
25、cs are required.11.6 Water AbsorptionWater Absorption section of TestMethods C 209.11.7 ThicknessThickness section of Test Methods C 209.12. 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
26、8.1.13. Rejection13.1 Failure to conform 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 re
27、quirements.14. Packaging and Package 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 c
28、ontainershall be plainly marked with 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 b
29、oard; per-lite; perlite thermal insulation 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(k
30、Pa) 575 (27.5) min 800 (38.3) minFlexural strength psi (kPa) 40 (276) min 60 (414) minWater absorption volume % 1.5 max 3.5 maxC728052ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standa
31、rd 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 committee and must be reviewed every five years andif
32、 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 meeting of theresponsible technical committee, whi
33、ch 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, 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).C728053
