1、Designation: C728 15Standard 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 number in parenth
2、eses 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 U.S. Department of Defense.1. Scope1.1 This specification covers the composition and physicalproperties f
3、or 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 When adopted by an authority having jurisdiction, codesthat address fire properties in many applications regulate theuse
4、of the thermal insulation materials covered by this speci-fication. Fire properties are controlled by job, project, or otherspecifications where codes or government regulations do notapply.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are ma
5、thematicalconversions 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 and
6、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 Method fo
7、r Measuring Compressive Properties ofThermal 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 Proper-ties
8、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 Cell
9、ular Polyisocyanu-rate Thermal Insulation BoardE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsC1763 Test Method for Water Absorption by Immersion ofThermal Insulation Materials3. Terminology3.1 For complete descriptions of terms used in thisspecification, refer to Terminolog
10、y C168.4. Classification4.1 Perlite thermal insulation board is classified as follows:4.1.1 Type 1, Roof Insulation BoardA perlite based roofinsulation cover board.4.1.2 Type 2, Roof Cover or Recover BoardThis is usedprimarily as a field-applied cover board over other roofinsulations or in reroofing
11、 applications. The product is alsoavailable to manufacturers of laminated rigid foam products asspecified in Specification C1289, Type III.4.1.3 Type 3, Roof Cover or Recover BoardAperlite basedcover board that is field applied over other roof insulations orin re-roofing and recover applications. Th
12、e product is alsoavailable to manufacturers of laminated rigid foam products asspecified in Specification C1289, Type III.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 dimens
13、ions.5.1.3 Quantity of material ordered.5.1.4 Manufacturers name, address, and telephone number.1This 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.
14、Current edition approved March 1, 2015. Published June 2015. Originallyapproved in 1972. Last previous edition approved in 2013 as C72813. DOI:10.1520/C0728-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
15、 ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Materials and Manufacture6.1 CompositionThe basic material of the insulation boardsh
16、all be perlite expanded by the application of heat to formglassy, cellular aggregates. The insulation and cover boardshall be composed of expanded perlite and fibers formed intorigid, flat, rectangular units with a suitable sizing materialincorporated in the product. A facing or coating is potential
17、lypresent on one or both surfaces to prevent excessive hotbitumen strike-in or adhesive absorption during roofing instal-lation.6.2 LaminationThe finished board is either single-ply ormultiple-ply. When multiple-ply boards are supplied, a suitableadhesive shall be used to join the plies.7. Physical
18、Properties7.1 Thermal ResistancePerlite thermal insulation boardsand cover shall conform to the following thermal resistances:Nominal Thicknessin. (mm)Thermal Resistance,Fhft2/btu (Km2/W)Type 1 Type 2 Type 312 (13) 1.4 (0.25) 1.3 (0.23) 1.2 (0.22)34 (19) 2.0 (0.35) . .1 (25) 2.7 (0.48) . .112 (38) 4
19、.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 desired resistance value. It is possible thatthe nominal thickness will fall outside the thicknesses shown in7.1. See 8.1 for tolerances.7.1.2 It
20、 is acceptable for insulation and cover boards havingthermal resistances other than those values listed to be suppliedas agreed upon by purchaser and seller.7.2 The insulation and cover board shall further conform tothe physical requirements shown in Table 1.8. Standard Dimensions and Tolerances8.1
21、The dimensions and tolerances shall conform to thoselisted below. it is acceptable for other dimensions to besupplied as agreed upon by purchaser and seller.Dimensions, in. (mm) Tolerance, in. (mm)Length, 36 (915), 48 (1220) 72 (1830), 96 (2440) +14 (6)18 (3)Width, 24 (610), 48 (1220) +14 (6)18 (3)T
22、hickness,12 to 3, (13 to 76), incl 116 (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 boardproducts shall be acceptable if dimension and installation
23、specifications 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. Sampling10.1 Unless otherwise specified, sampling for qua
24、lificationand 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 the event ofchallenge, Test Method C177 shall be the re
25、feree 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 SurfaceSection12 on Tensile Strength Perpendicular to Surface of TestMethods C209.11.4 Flexural Strength and Break LoadTest MethodsC
26、203, Method I, Procedure D, except test at a strain rate of 2in./min using 3 in. (76 mm) wide specimens on a 10 in. (254mm) span.11.5 Flame Spread ClassificationTest Method E84 in theevent that surface burning characteristics are required.11.6 Water AbsorptionTest Methods C1763, Procedure B.11.7 Thi
27、cknessThickness section of Test Methods C209.11.8 Oven-Dry DensityMoisture Content and Density sec-tion 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. Reje
28、ction13.1 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 requirements.T
29、ABLE 1 Physical RequirementsProperty Units Type 1 Type 2 Type 3Density lb/ft3(kg/m3) 8 (128) min 10 (160) min 12 (192) minCompressive strength at5 % consolidationpsi (kPa) 20(138) min 20 (138) min 50 (345) minTensile strength,perpendicularlbf/ft2(kPa) 575 (27.5) min 800 (38.3) min 1800 (86) minBreak
30、 Load Strength lbf (kgf) 6.5 (2.9) min 4.5 (2.0) min 8 (3.6) minFlexural strength psi (kPa) 40 (276) min 60 (414) min 180 (1241) minWater absorption volume % 1.5 max 3.5 max 3.5 maxC728 15214. Packaging and Package Marking14.1 PackagingUnless otherwise specified, boards shallbe packaged in the manuf
31、acturers 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 with the suppliers name, address,telephone number, board dimensions, quantity, and the cov
32、er-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 insulation board; roof insulation; thermalinsulationASTM International takes no position r
33、especting the validity of any patent rights 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.Thi
34、s standard is subject to revision at any time 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 Inte
35、rnational Headquarters. Your comments will 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
36、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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 153
