1、Designation: C 1427 07Standard Specification forExtruded Preformed Flexible Cellular Polyolefin ThermalInsulation in Sheet and Tubular Form1This standard is issued under the fixed designation C 1427; the number immediately following the designation indicates the year oforiginal adoption or, in the c
2、ase of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers two grades of extrudedpreformed flexible cellular polyolefin t
3、hermal insulation.Grade 1 is for operating temperatures from 150F to 200F(101C to 93C). Grade 2 is for operating temperatures from297F to 250F (182C to 121C). For specific applications,the actual temperature limit shall be agreed upon between themanufacturer and the purchaser.1.2 The use of thermal
4、insulation materials covered by thisspecification are governed by codes and standards that addressfire performance. Contact manufacturer for specific perfor-mance of product at the intended use thickness.1.3 This specification covers the physical properties ofpreformed flexible cellular polyolefin t
5、hermal insulation,which have been deemed mandatory for thermal design.Physical properties such as density and coefficient of thermalexpansion (CTE) have been deemed nonmandatory for thermaldesign. Nonmandatory physical properties have been includedin Appendix X1 for information purposes only.1.4 The
6、 values stated in inch-pound units are to be regardedas the standard. The metric unit equivalents of inch-poundunits, given in parentheses, are approximate.1.5 The following safety hazards caveat pertains only to thetest methods portion, Section 11, of this specification. Thisstandard does not purpo
7、rt to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2C 168
8、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 209 Test Methods for Cellulosic Fiber Insulating BoardC 335 Test Method for Steady-State Heat Transfer Proper-ties of P
9、ipe InsulationC 390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC 447 Practice for Estimating the Maximum Use Tempera-ture of Thermal InsulationsC 518 Test Method for Steady-State Thermal Transmissio
10、nProperties by Means of the Heat Flow Meter ApparatusC 534 Specification for Preformed Flexible ElastomericCellular Thermal Insulation in Sheet and Tubular FormC 585 Practice for Inner and Outer Diameters of RigidThermal Insulation for Nominal Sizes of Pipe and Tubing(NPS System)C 1045 Practice for
11、Calculating Thermal TransmissionProperties Under Steady-State ConditionsC 1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC 1114 Test Method for Steady-State Thermal TransmissionProperties by Means of the Thin-Heater ApparatusC 1303 Test M
12、ethod for Predicting Long-Term ThermalResistance of Closed-Cell Foam InsulationC 1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsD 883 Terminology Relating to PlasticsD 1622 Test Method for Apparent Density of Rigid CellularPlasticsD 1667 Specification for Flexible Cel
13、lular MaterialsPoly(Vinyl Chloride) Foam (Closed-Cell)D 3575 Test Methods for Flexible Cellular Materials MadeFrom Olefin PolymersE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE 96/E 96M Test Methods for Water Vapor Transmission ofMaterialsE 177 Practice for Use of the Term
14、s Precision and Bias inASTM Test Methods1This 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 Nov. 15, 2007. Published Decemb
15、er 2007. Originallyapproved in 1999. Last previous edition approved in 2004 as C 1427 - 04.2For 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 Su
16、mmary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E 228 Test Method for Linear Thermal Expansion of SolidMaterials With a Push-Rod DilatometerE 456 Terminology Relating to Quality and StatisticsE 670 Test
17、Method for Side Force Friction on Paved Sur-faces Using the Mu-MeterE 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE 2231 Practice for Specimen Preparation and Mounting ofPipe and Duct Insulation Materials to Assess SurfaceBurning Characteristics2.2
18、Other Standards:CAN/ULC-S102.203 Standard Method of Test for SurfaceBurning Characteristics of Flooring, Floor Coverings andMiscellaneous Materials and Assemblies.3. Terminology3.1 DefinitionsTerms used in this specification are definedin Terminology C 168 and in Terminology D 883.3.2 Definitions of
19、 Terms Specific to This Standard:3.2.1 polyolefinpolymers made by the polymerization ofolefins, such as ethylene or propylene or copolymerization ofolefins with other monomers.3.2.2 cellular polyolefina cellular plastic composed pri-marily of olefin material, processed to form a flexible foamwith a
20、closed cell construction.3.2.2.1 DiscussionThese materials are considered foamplastics.3.2.3 natural skincontinuous polymer surface or skinnaturally occurring as a result of the extrusion or productionprocess, also referred to as “integral skin.”3.2.4 flexible cellulara flexible cellular organic pol
21、ymericmaterial will not rupture within 60 s when a specimen 8 by 1by 1 in. (200 by 25 by 25 mm) is bent around a 1-in. (25-mm)diameter mandrel at a uniform rate of one lap in5sintheformof a helix at a temperature between 65 and 85F (18 and 29C).4. Classification4.1 The preformed flexible cellular po
22、lyolefin thermal insu-lation shall be of the following types:4.1.1 Type Itubular.4.1.2 Type IIsheet.4.2 The preformed flexible cellular polyolefin thermal insu-lation shall be of the following grades:4.2.1 Grade 1 (non-crosslinked)Use temperature 150Fto 200F (101C to 93C).4.2.2 Grade 2 (crosslinked)
23、Use temperature 297F to250F (182C to 121C).5. Material5.1 These products shall be extruded flexible cellular poly-olefin materials.5.2 These products are expanded with hydrochlorofluoro-carbon gases, hydrofluorocarbon gases, hydrocarbon gases,chemical blowing agents, atmospheric gases, or combinatio
24、nsthereof. These gases will diffuse from the insulation with timeafter production.5.3 Extruded flexible cellular polyolefin materials shall beof uniform density. Even though these materials will have asmooth skin surface on one or both sides, they are to beconsidered homogeneous for the purposes of
25、determiningthermal performance.6. Physical Requirements6.1 Qualification Requirements:6.1.1 Thermal conductivity, water vapor permeability, andlinear shrinkage, physical properties listed in Table 1 aredefined as qualification requirements (refer to Practice C 390,Section 5).6.2 Inspection Requireme
26、nts:6.2.1 The requirements for water absorption listed in Table1 is defined as inspection requirements (refer to Practice C 390,Sections 5 Classification of Requirements and Section 7,Acceptance for Inspection Requirements.)6.2.2 All dimensional requirements shall be as described inSection 7 and Tab
27、le 2.6.2.3 All workmanship, finish and appearance requirementsshall be as described in Section 8.6.2.4 Compliance with inspection requirements shall be inaccordance with Practice C 390.6.2.5 Both Grade 1 and Grade 2 of Type I and Type IIinsulations shall conform to the respective physical propertyre
28、quirements listed in Table 1.6.3 The material shall be free of objectionable odors at alltemperatures within the recommended use range when testedaccording to C 1304.6.4 Surface Burning Characteristics:6.4.1 Surface burning characteristics shall be tested for thethickness supplied in accordance with
29、 Test Method E84. Forapplications in Canada test to CAN/ULC-S102.203. Theresults shall be reported. See Section 1 of Test Method E84forTABLE 1 Physical Property Requirements (Type ITubular andType IISheet)NOTE 1The values stated in Table 1 are not always appropriate asdesign values. For specific des
30、ign recommendations using a particularproduct and for supporting documentation, consult the manufacturer.Property Unit Grade 1RequirementGrade 2RequirementUse temperature, max F (C) 200 (93) 250 (121)Use temperature, min F (C) 150 (101) -297 (-182)Thermal conductivity, max.At a mean temperature of:2
31、50F (157C) 0.25 (0.036)120F (84C) Btu-in./hr-ft2-F 0.29 (0.042) 0.29 (0.042)0F (18C) (W/m K) 0.33 (0.048) 0.33 (0.048)75F (24C) 0.35 (0.050) 0.35 (0.050)120F (49C) 0.37 (0.053) 0.37 (0.053)150F (66C) 0.38 (0.055)200F (93C) 0.40 (0.058)Water-vapor permeability,max.perm-in(g/Pa s m)0.05(7.29 3 109)0.0
32、5(7.29 3 109)Water absorption, max., % by volume 0.2 0.2linear shrinkage,at maxiumumuse temperature.% linear change 7.0 7.0C1427072information regarding the applicability of this test method foruse with cellular plastics and Practice E 2231 for specimenmounting methods. This test does not always def
33、ine the hazardthat may be presented by preformed flexible cellular polyolefinthermal insulation under actual fire conditions. It is retained forreference in this specification as laboratory test data requiredby some building codes.6.4.2 Preformed flexible cellular polyolefin thermal insula-tion is a
34、n organic material and is combustible. Do not exposeit to flames or other ignition sources. The fire performance ofthe material shall be addressed through fire test requirementsestablished by the appropriate governing documents.6.4.3 It is possible the surface burning characteristics of thematerials
35、 are different in the vertical orientation from those inthe horizontal orientation.7. Standard Shapes, Sizes and Dimensions7.1 Type ITubular materials are manufactured in 36, 60 or72-in. (0.91, 1.52 or 1.83-m) standard lengths, as well as,continuous lengths. Tubular insulation is manufactured for pi
36、pesizes up to 4-in. (100mm) nominal pipe size (NPS) with wallthickness up to 1-in. (25.4mm).7.2 Type IISheet and roll material are manufactured inthickness up to 1 in. (25 mm). Sheet insulation is manufacturedin the following sizes: 36 by 48 in. (0.91 by 1.22 m) and 48-in.(1.22-m) wide continuous le
37、ngths.7.3 Actual dimensions and tolerances shall be agreed uponbetween the manufacturer and the purchaser. The ProcedureSection and Pipe and Tubing Diameter Section of PracticeC 585 is beneficial in some cases in determining the actualdimensions required.7.4 The insulation dimensions shall conform t
38、o Table 2unless otherwise agreed upon between the supplier and thepurchaser.8. Surface8.1 Type IAll surfaces (except ends and slits that aremechanically cut) shall have natural skins.8.2 Type IISheet material is manufactured either withoutskins, with skin on one side or with skin on two sides. Thesu
39、rface shall be at the manufacturers option, unless otherwisespecified.9. Workmanship, Finish and Appearance9.1 The insulation shall be free of visual defects that willadversely affect the service performance.10. Sampling10.1 The insulation shall be sampled in accordance withPractice C 390. Details s
40、hall be agreed upon between thepurchaser and the supplier.10.2 When possible, the insulation shall be tested in theform supplied. However, when Type I does not lend itself totesting or to making of test specimens because of its shape,standard test specimen sheets shall be prepared from materialhavin
41、g equivalent physical characteristics to Type I (see11.1.1).11. Test Methods11.1 The physical requirements enumerated in this specifi-cation shall be determined in accordance with the followingmethods:11.1.1 When standard test specimen sheets are required fortubular material, they shall be prepared
42、from tubular specimenhaving a minimum inner diameter of 3 in. by longitudinallyslitting the tubular specimens along one wall thickness, open-ing and laying the specimen flat.11.1.2 These products are manufactured with either skin onone side or skin on both sides. Testing shall be done in the assold
43、form.11.2 Apparent Thermal Conductivity:11.2.1 Type IUse in accordance with Test Method C 177,C 518, C 1114 or C 335 in conjunction with Practice C 1045.Use standard test sheet for Test Methods C 177, C 518,orC 1114.11.2.1.1 Test Method C 1114 shall not be used at tempera-tures or resistance ranges
44、other than those with comparableresults to Test Method C 177. In case of dispute, Test MethodC 177 is recognized as the final authority.NOTE 1Test Method C 335 may be used to determine the apparentthermal conductivity values for Type 1 tubular material operating at orabove ambient temperature. Norma
45、lly, Test Method C 335 is not used todetermine the apparent thermal conductivity values for Type 1 tubularmaterial operating at or below ambient temperature.11.2.2 Type IIUse in accordance with Test MethodsC 177, C 518 or C 1114 in conjunction with Practice C 1045.11.2.2.1 Test Method C 1114 shall n
46、ot be used at tempera-tures or resistance ranges other than those with comparableresults to Test Method C 177. In case of dispute, Test MethodC 177 is recognized as the final authority.11.2.3 Tests shall be conducted with a temperature differ-ential of 50 6 10F (25 6 5C) between the hot and cold pla
47、tesof the testing apparatus in accordance with Practice C 1058,Table 3.11.2.4 All materials shall be aged a minimum of 180 days at73 6 4F (23 6 2C) and at relative humidity of 506 5%inTABLE 2 Dimensional Tolerances, in. (mm)Type IInside diameter:Up to58 (16) incl. +18 (+ 3) 0 (0)34 (19) to 1-12 (38)
48、 incl. +316 (+ 5) 0 (0)1-58 (41) to 2-38 (60) incl. +14 (+ 6) 0 (0)Over 2-38 (60) +38 (+ 10) 0 (0)Wall thicknesses:Up to34 (19) +18 (+ 3) 0 (0)34 and over (19) +316 (+ 5) 0 (0)Length: +3 (+ 75) 1 (25)Type IIThickness:Up to12 (13) incl. 6116 (2)Over12 (13) 6332 (3)Length and width: 6 3%C1427073atmosp
49、heric air before measuring the thermal conductivity.Test Method C 1303 shall be used in estimating the long-termchange in the thermal resistance of unfaced closed cell plasticfoams by slicing and scaling under controlled laboratoryconditions, providing the material meets the requirements forhomogeneity as defined in Test Method C 1303.11.3 Water Vapor Permeability:11.3.1 Type I and Type IIUse standard test specimensheets for Type I. Use Test Method E 96desiccant method,
