1、Designation: C1427 071Standard Specification forExtruded Preformed Flexible Cellular Polyolefin ThermalInsulation in Sheet and Tubular Form1This standard is issued under the fixed designation C1427; the number immediately following the designation indicates the year oforiginal adoption or, in the ca
2、se of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTESections 1.4 and 1.5 were editorially revised in April 2010.1. Scope1.1 This specification covers
3、 two grades of extrudedpreformed flexible cellular polyolefin thermal 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 be
4、tween themanufacturer and the purchaser.1.2 The use of thermal 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
5、 physical properties ofpreformed flexible cellular polyolefin thermal 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 be
6、en includedin Appendix X1 for information purposes only.1.4 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not pu
7、rport 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 health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C
8、168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC209 Test Methods for Cellulosic Fiber Insulating BoardC335 Test Method for Steady-State Heat Transfer Proper-ties of
9、Pipe InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC447 Practice for Estimating the Maximum Use Tempera-ture of Thermal InsulationsC518 Test Method for Steady-State Thermal TransmissionP
10、roperties by Means of the Heat Flow Meter ApparatusC534 Specification for Preformed Flexible Elastomeric Cel-lular Thermal Insulation in Sheet and Tubular FormC585 Practice for Inner and Outer Diameters of ThermalInsulation for Nominal Sizes of Pipe and TubingC1045 Practice for Calculating Thermal T
11、ransmission 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-Heater ApparatusC1303 Test Method for Predicting L
12、ong-Term ThermalResistance of Closed-Cell Foam InsulationC1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsD883 Terminology Relating to PlasticsD1622 Test Method for Apparent Density of Rigid CellularPlasticsD1667 Specification for Flexible Cellular MaterialsPoly(Vinyl
13、Chloride) Foam (Closed-Cell)D3575 Test Methods for Flexible Cellular Materials MadeFrom Olefin PolymersE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE177 Practice for Use of the Terms Precision and Bias inASTM Te
14、st 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 December 2007. Originallyapproved in
15、 1999. Last previous edition approved in 2004 as C1427 - 04. DOI:10.1520/C1427-07.2For 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 Summary pag
16、e onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E228 Test Method for Linear Thermal Expansion of SolidMaterials With a Push-Rod DilatometerE456 Terminology Relating to Quality and StatisticsE670 Test Method for T
17、esting Side Force Friction on PavedSurfaces Using the Mu-MeterE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE2231 Practice for Specimen Preparation and Mounting ofPipe and Duct Insulation Materials to Assess SurfaceBurning Characteristics2.2 Other St
18、andards: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 C168 and in Terminology D883.3.2 Definitions of Terms Spe
19、cific 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 closed cel
20、l 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 polymericmate
21、rial 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 polyolefin t
22、hermal 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)Use temper
23、ature 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 combinationsthereof.
24、 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 determinin
25、gthermal 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 C390,Section 5).6.2 Inspection Requirements:6.2.1 T
26、he requirements for water absorption listed in Table1 is defined as inspection requirements (refer to Practice C390,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 Table 2.6.2.3 A
27、ll workmanship, finish and appearance requirementsshall be as described in Section 8.6.2.4 Compliance with inspection requirements shall be inaccordance with Practice C390.6.2.5 Both Grade 1 and Grade 2 of Type I and Type IIinsulations shall conform to the respective physical propertyrequirements li
28、sted in Table 1.6.3 The material shall be free of objectionable odors at alltemperatures within the recommended use range when testedaccording to C1304.6.4 Surface Burning Characteristics:6.4.1 Surface burning characteristics shall be tested for thethickness supplied in accordance with Test Method E
29、84. Forapplications in Canada test to CAN/ULC-S102.203. Theresults shall be reported. See Section 1 of Test Method E84 forTABLE 1 Physical Property Requirements (Type ITubular andType IISheet)NOTE 1The values stated in Table 1 are not always appropriate asdesign values. For specific design recommend
30、ations 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:250F (157C) 0.
31、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)0.05(7.29 3 109)
32、Water absorption, max., % by volume 0.2 0.2linear shrinkage,at maxiumumuse temperature.% linear change 7.0 7.0C1427 0712information regarding the applicability of this test method foruse with cellular plastics and Practice E2231 for specimenmounting methods. This test does not always define the haza
33、rdthat 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 an organic ma
34、terial 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 are differe
35、nt 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 pipesizes up t
36、o 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 lengths.7.3 Ac
37、tual dimensions and tolerances shall be agreed uponbetween the manufacturer and the purchaser. The ProcedureSection and Pipe and Tubing Diameter Section of PracticeC585 is beneficial in some cases in determining the actualdimensions required.7.4 The insulation dimensions shall conform to Table 2unle
38、ss 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. Thesurface shall b
39、e 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 C390. Details shall be agreed
40、 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 materialhaving equivalent p
41、hysical 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 from tubular s
42、pecimenhaving 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 form.11.2 Appa
43、rent Thermal Conductivity:11.2.1 Type IUse in accordance with Test Method C177,C518, C1114 or C335 in conjunction with Practice C1045. Usestandard test sheet for Test Methods C177, C518,orC1114.11.2.1.1 Test Method C1114 shall not be used at tempera-tures or resistance ranges other than those with c
44、omparableresults to Test Method C177. In case of dispute, Test MethodC177 is recognized as the final authority.NOTE 1Test Method C335 may be used to determine the apparentthermal conductivity values for Type 1 tubular material operating at orabove ambient temperature. Normally, Test Method C335 is n
45、ot 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 Methods C177,C518 or C1114 in conjunction with Practice C1045.11.2.2.1 Test Method C1114 shall not be used at tempera-tures or r
46、esistance ranges other than those with comparableresults to Test Method C177. In case of dispute, Test MethodC177 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 platesof the testing apparatus in acc
47、ordance with Practice C1058,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%inatmospheric air before measuring the thermal conductivity.TABLE 2 Dimensional Tolerances, in. (mm)Type IInside diameter:Up to58 (16) incl. +18 (+ 3) 0
48、(0)34 (19) to 1-12 (38) 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 wi
49、dth: 6 3%C1427 0713Test Method C1303 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 C1303.11.3 Water Vapor Permeability:11.3.1 Type I and Type IIUse standard test specimensheets for Type I. Use Test Method E96/E96Mdesiccantmethod, with the following cond
