1、Designation: C1482 17Standard Specification forPolyimide Flexible Cellular Thermal and Sound AbsorbingInsulation1This standard is issued under the fixed designation C1482; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 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 specification covers the composition and physicalproperties of lightweight, flexible open-cell polyimide foamins
3、ulation intended for use as thermal and sound-absorbinginsulation for temperatures from 328F up to +572F (200Cand +300C) in commercial and industrial environments.1.1.1 Annex A1 includes faced polyimide foam as specifiedby the U.S. Navy for marine applications.1.1.2 This standard is designed as a ma
4、terial specificationand not a design document. Physical property requirementsvary by application and temperature. No single test is adequatefor estimating either the minimum or maximum use tempera-ture of polyimide foam under all possible conditions. Consultthe manufacturer for specific recommendati
5、ons and physicalproperties for specific applications.1.1.3 The use of an appropriate vapor retarder is required inall applications where condensation could occur and cause adecrease in thermal performance or affect other system prop-erties.1.2 The values stated in inch-pound units are to be regarded
6、as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard is used to measure and describe theresponse of materials, products, or assemblies to heat and flameunder controlled conditions,
7、 but does not by itself incorporateall factors required for fire-hazard or fire-risk assessment of thematerials, products, or assemblies under actual fire conditions.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of t
8、he user of this standard to establish appro-priate safety, health and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE 1The subject matter of this material specification is not coveredby any other ASTM specification. There is no known ISO standardc
9、overing the subject of this standard.1.5 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 World Tr
10、ade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C165 Test Method for Measuring Compressive Properties ofThermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Trans
11、mission Properties by Means ofthe Guarded-Hot-Plate ApparatusC302 Test Method for Density and Dimensions of Pre-formed Pipe-Covering-Type Thermal InsulationC335 Test Method for Steady-State Heat Transfer Propertiesof Pipe InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC
12、411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC421 Test Method for Tumbling Friability of PreformedBlock-Type and Preformed Pipe-Covering-Type ThermalInsulationC423 Test Method for SoundAbsorption and SoundAbsorp-tion Coefficients by the Reverberation Room MethodC
13、447 Practice for Estimating the Maximum Use Tempera-ture of Thermal InsulationsC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC585 Practice for Inner and Outer Diameters of ThermalInsulation for Nominal Sizes of Pipe and TubingC634 Terminolo
14、gy Relating to Building and EnvironmentalAcoustics1This 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 Sept. 1, 2017. Publis
15、hed September 2017. Originallyapproved in 2000. Last previous edition approved in 2012 as C1482 12. DOI:10.1520/C1482-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refe
16、r 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization establish
17、ed 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.1C665 Specification for Mineral-Fiber Blanket Thermal Insu-lation for Light Frame Construction and Manufacture
18、dHousingC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC1114 Test Method for Steady-State Thermal TransmissionProperties by Means of the Thin-He
19、ater ApparatusC1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsC1338 Test Method for Determining Fungi Resistance ofInsulation Materials and FacingsC1559 Test Method for Determining Wicking of FibrousGlass Blanket Insulation (Aircraft Type)D395 Test Methods for Rubber
20、PropertyCompression SetD543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD638 Test Method for Tensile Properties of PlasticsD2126 Test Method for Response of Rigid Cellular Plasticsto Thermal and Humid AgingD3574 Test Methods for Flexible Cellular MaterialsSlab,Bonded, and
21、Molded Urethane FoamsD3675 Test Method for Surface Flammability of FlexibleCellular Materials Using a Radiant Heat Energy SourceE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE176 Terminology of Fire StandardsE662
22、 Test Method for Specific Optical Density of SmokeGenerated by Solid MaterialsE795 Practices for Mounting Test Specimens During SoundAbsorption TestsE800 Guide for Measurement of Gases Present or GeneratedDuring FiresE1354 Test Method for Heat and Visible Smoke ReleaseRates for Materials and Product
23、s Using an Oxygen Con-sumption CalorimeterE2231 Practice for Specimen Preparation and Mounting ofPipe and Duct Insulation Materials to Assess SurfaceBurning Characteristics2.2 U.S. Federal Standards:FAR 25.853(a), Appendix F, Part 1, (a) (1) (i) Test Criteriaand Procedures for Showing Compliance wit
24、h Sec.25.853, or 25.8553FAR 25.856(a), Appendix F, Part VI, Test Method to Deter-mine the Flammability and Flame Propagation Character-istics of Thermal/Acoustic Insulation MaterialsMIL-C-20079 Cloth, Glass; Tape, Textile Glass; and Thread,Glass4MIL-A-3316 Adhesive, Fire-Resistant, Thermal Insulatio
25、n4DOD-E-24607 Enamel, Interior, Nonflaming (Dry), Chlori-nated Alkyd Resin, Semigloss (Metric)42.3 Private Sector Standards:Boeing BSS 7239 Test Method for Toxic Gas Generation byMaterials on Combustion5TAPPI T 803 Puncture and Stiffness Test of ContainerBoard6TM-232 Vertical Pipe-Chase Test to Dete
26、rmine Flame-Propagation Characteristics of Pipe Covering73. Terminology3.1 DefinitionsTerms used in this specification are definedin Terminology C168, Terminology C634, and TerminologyE176. In the case of a conflict, Terminology C168 shall be thedominant authority.3.2 Definitions of Terms Specific t
27、o This Standard:3.2.1 flexible cellular producta cellular organic polymericmaterial that will not rupture when a specimen 8 by 1 by 1 in.(200 by 25 by 25 mm) is bent around a 1 in. (25 mm) diametermandrel at a uniform rate of one lap in 5 s at a temperaturebetween 64 and 85F (18 and 29C), in accorda
28、nce with thedescription of a flexible cellular product (currently Subsection3.1.3) in Test Methods D3574.3.2.2 slaba rectangular section, piece, or sheet of foamthat is cut from a bun, or block of foam.3.2.3 polyimide foama flexible cellular product in whichthe bonds formed between monomers during p
29、olymerizationare imide or amide bonds. The theoretical mole fraction ofimide bonds must be greater than the theoretical mole fractionof amide bonds.4. Classification4.1 The flexible polyimide cellular insulations of this speci-fication are classified into Types I through VII as listed inTables 1 and
30、 2 (Note 2). Type I is further subdivided into twogrades based on maximum allowable thermal conductivity at75F (24C). The Types II and III are subdivided into classes(Note 3).NOTE 2Although all types find application in a wide variety ofmarkets, the current primary market for each type is as follows
31、:Type Imarine and industrial applications.Type IIType II is Type I foam faced and used in specific marineapplications, as specified for the U.S. Navy in Annex A1.Type IIIType III is Type I foam pipe shaped and used in specificmarine applications, as specified for the U.S. Navy in Annex A1.Types IV,
32、V, and VIIaerospace applications depending on density.Type VIapplications requiring improved high temperature and fireperformance.NOTE 3The Type II and Type III designations as well as thesubdivision of Types into Classes is to maintain uniformity with existingU.S. Navy nomenclature (Annex A1).3Fede
33、ral Aviation Regulations Part 25 (Airworthiness Standards, TransportCategory Aircraft, and Section 25.853. Procedure in appendix F, Part I, (a) (1) (i)and (ii). Available from Superintendent of Documents, U.S. Government PrintingOffice P.O. Box 371954, Pittsburgh, PA 15250-7954.4Available from Stand
34、ardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.5Available from Boeing Commercial Airplane Group, Material Division, P.O.Box 3707, Seattle, WA 98124-2207.6Available from Technical Association of the Pulp and Paper I
35、ndustry (TAPPI),15 Technology Parkway South, Norcross, GA 30092, http:/www.tappi.org.7Available from Armstrong World Industries, Inc., Research and Development,P.O. Box 3511, Lancaster, PA 17604.C1482 1725. Materials and Manufacture5.1 Polyimide foam shall be manufactured from the appro-priate monom
36、ers, and necessary compounding ingredients toconform to 3.2.3. This is not intended to imply that foamproducts made using different materials are equivalent withrespect to all physical properties.6. Physical Properties6.1 The insulation shall conform to the requirements inTables 1 and 2 for each typ
37、e, unless specifically statedotherwise by agreement between the supplier and the pur-chaser. Tests shall be made in accordance with the methodsspecified in 11.1 11.20.TABLE 1 Polyimide Foam Classification (inch-pound)TYPE IGrade 1TYPE IGrade 2TYPE IV TYPE V TYPE VI TYPE VIIDensity, range, lb/ft30.36
38、0.53 0.360.53 0.280.37 0.500.58 0.350.55 0.420.52Maximum Apparent Thermal Conductivity Btu-in./h ft2F238F 0.14 0.14 0.14 0.14 0.14 0.1458F 0.23 0.22 0.23 0.23 0.23 0.2375F 0.32 0.29 0.34 0.30 0.34 0.34212F 0.51 0.47 0.54 0.47 0.50 0.50356F 0.74 0.70 0.81 0.70 0.74 0.74572F NAANAANAANAA1.15 NAAUpper
39、Temperature Limit test temperature for C411, F 400 400 400 400 572 400High Temperature Stability%ofinitial tensile strength retained after 336 hin air oven at 400 F, min, %60 60 NAANAANAANAAHigh Temperature Stability%ofinitial tensile strength retained after 336 hin air oven at 572 F, min, %NAANAANA
40、ANAA70 NAACompressive Strength, min, lb/in.2at 25% deflection 0.5 0.5 NAANAA0.5 NAA50% Compression Deflection, min, lb/in21.2 1.2 NAANAANAANAACompression Set, max, % NAANAA45 40 NAA40Steam AgingChange in Tensile Strength, max, %Dimensional and weight changes, max, %25102510NAANAANAANAA2510NAANAACorr
41、osiveness pass pass pass pass pass passChemical Resistance pass pass pass pass pass passSurface Burning Characteristics, 2 in. thicknessFlame Spread Index, maxSmoke Developed Index, max101510151520152010151520Radiant Panel Surface Flammability, Radiant Panel Index, max 5 5 5 5 2 NAAVertical BurnBBur
42、n Length, max, in. NAANAA22.4NAA2.4After Flame Time, max, s NAANAA11A1Total heat release (2 min), max, Btu/ft279 79 NAANAANAANAAFlammability and Flame PropagationAfter Flame Time, max., sFlame Propagation, max., in.NAANAANAANAA3.02.03.02.0NAANAA3.02.0Maximum heat release rate, max, Btu/min-ft2106 10
43、6 NAANAANAANAASpecific Optical Smoke Density, Dm, maxnon-flaming modeflaming mode51051051051055510Total Hydrogen Halide (HCl, HBr, and HF) Gases in Smoke, Flaming Exposure,max, ppm (Above background for empty chamber)10 10 NAANAA10 NAAToxic Gas Generation: max, ppmCO 300 300 300 300 300 300HCN 555 5
44、 55HFHCl 10 10 10 10 10 10HBr 555 5 55SO2NOx 10 10 10 10 10 10Acoustical Absorption Coefficient 2 in. thickness, min Noise ReductionCoefficient (NRC)0.75 0.70 0.75 0.85 0.70 0.85Tumbling Friability600 Revolutions, mass loss, Max % 3.0 3.0 3.0 3.0 3.0 3.01200 Revolutions, mass loss Max, % 5.0 5.0 5.0
45、 5.0 5.0 5.0Odor Emission Pass Pass Pass Pass Pass PassFungi Resistance Pass Pass Pass Pass Pass PassWicking, 48h, distance above water line,max at 72F, in.0.5 0.5 0.5 0.5 0.5 0.5ANA = not applicableBThe material shall not melt, drip, or flow when tested as required.C1482 1736.1.1 Upper Temperature
46、LimitUpper temperature limitshall be determined according to 11.4 at the intended maximumuse temperature of the application, or at a temperature deter-mined by agreement between the purchaser and manufacturer.6.1.2 Burning CharacteristicsThe uncoated and unfacedfoam shall conform to the requirements
47、 in Tables 1 and 2 foreach type, when tested in accordance with 11.12 11.20,without the use of flame/smoke or heat suppressant barriers orcoatings.6.1.3 Sound Absorbing PerformanceUnless specificallyotherwise agreed to between the supplier and the purchaser, alltests shall be made in accordance with
48、 the methods specified in11.19.6.2 The values stated in Tables 1 and 2 are not to be used asdesign values. It is the responsibility of the buyer to specifydesign requirements and obtain supporting documentationfrom the material supplier.TABLE 2 Polyimide Foam Classification (SI units)TYPE IGrade 1TY
49、PE IGrade 2TYPE IV TYPE V TYPE VI TYPE VIIDensity, range, kg/m35.88.5 5.88.5 4.55.9 8.09.3 5.68.8 6.78.3Maximum Apparent Thermal Conductivity W/m-K150C 0.020 0.020 0.020 0.020 0.020 0.02050C 0.033 0.032 0.033 0.033 0.033 0.03324C 0.046 0.042 0.049 0.043 0.049 0.049100C 0.074 0.068 0.078 0.068 0.072 0.072180C 0.107 0.101 0.117 0.101 0.107 0.107300C NAANAANAANAA0.166 NAAUpper Temperature Limit test temperature for C411, C 204 204 204 204 300 204High Temperature Stability%ofinitial tensile stren
