1、Designation: C 1427 04Specification 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 case of re
2、vision, 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 extruded preformed flexiblecellular polyolefin thermal insulation with
3、operating tempera-tures from 150F to 200F (101C to 93C). For specificapplications, the actual temperature limit shall be agreed uponbetween the manufacturer and the purchaser.1.2 The use of thermal insulation materials covered by thisspecification are governed by codes and standards that addressfire
4、 performance.1.3 This specification covers the 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 thermalde
5、sign. Nonmandatory physical properties have been includedin Appendix X1 for information purposes only.1.4 The 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 ca
6、veat pertains only to thetest methods portion, Section 11, of this specification. Thisstandard does not purport 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 determin
7、e the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2C 168 Terminology Relating to Thermal Insulating Materi-alsC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded Hot Plate ApparatusC
8、 209 Test Methods for Cellulosic Fiber Insulating BoardC 335 Test Method for Steady-State Heat Transfer Proper-ties of Horizontal Pipe InsulationC 390 Practice for Sampling and Acceptance of PreformedThermal Insulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insu
9、lationC 447 Practice for Estimating the Maximum Use Tempera-ture of Thermal InsulationsC 518 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Heat Flow Meter ApparatusC 534 Specification for Preformed Flexible ElastomericCellular Thermal Insulat
10、ion 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 Calculating Thermal TransmissionProperties From Steady-State Heat Flux MeasurementsC 1058 Practice for Selecting Temperatures for E
11、valuatingand Reporting Thermal Properties of Thermal InsulationC 1114 Test Method for Steady-State Thermal TransmissionProperties by Means of the Thin-Heater ApparatusC 1303 Test Method for Estimating the Long-Term Changein the Thermal Resistance of Unfaced Rigid Closed CellPlastic Foams by Slicing
12、and Scaling Under ControlledLaboratory ConditionsC 1304 Test Method for Assessing Odor Emissions ofThermal Insulation MaterialsD 883 Terminology Relating to PlasticsD 1622 Test Method for Apparent Density of Rigid CellularPlasticsD 1667 Specification for Flexible Cellular Materials- VinylChloride Po
13、lymers and Copolymers (Closed-Cell Foam)D 3575 Test Methods for Flexible Cellular Materials Madefrom Olefin PolymersE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96 Test Methods for Water Vapor Transmission of Mate-rials1This specification is under the jurisdiction of ASTM
14、 Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C 16.22 onOrganic and Nonhomogeneous Inorganic Thermal Insulation.Current edition approved Dec. 1, 2004. Published January 2005. Originallyapproved in 1999. Last previous edition approved in 1999 as C 1427 - 99a.2Fo
15、r 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 page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C70
16、0, West Conshohocken, PA 19428-2959, United States.E 177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE 228 Test Methods for Linear Thermal Expansion of SolidMaterials with Vitreous Silica DilatometerE 456 Terminology for Relating to Quality and StatisticsE 670 Test Method for
17、 Side Force Friction on PavedSurfaces Using the Mu-MeterE 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE 2231 Standard Practice for Specimen Preparation andTesting of Pipes and Duct Insulation Systems to AccessSurface Burning Characteristics3. Termin
18、ology3.1 DefinitionsTerms used in this specification are definedin Terminology C 168 and in Terminology D 883.3.2 Definitions of Terms Specific to This Standard:3.2.1 polyolefinpolymers made by the polymerization ofolefins, such as ethylene or propylene or copolymerization ofolefins with other monom
19、ers.3.2.2 cellular polyolefina cellular plastic composed pri-marily of olefin material, processed to form a flexible foamwith a 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 o
20、f the extrusion or productionprocess, also referred to as “integral skin.”3.2.4 flexible cellulara flexible cellular organic polymericmaterial 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
21、in5sintheformof a helix at a temperature between 65 and 85F (18 and 29C).4. Classification4.1 The preformed flexible cellular non-crosslinked poly-olefin thermal insulation shall be of the following types:4.1.1 Type Itubular.4.1.2 Type IIsheet.5. Material5.1 These products shall be extruded flexible
22、 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. These gases will diffuse from the insulation with timeafter production.5.3 Extruded flex
23、ible 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 determiningthermal performance.6. Physical Requirements6.1 Qualification Requirements:6.1.1 Thermal
24、 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 Requirements:6.2.1 The requirements for water absorption listed in Table1 is defined as inspection requireme
25、nts (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 Table 2.6.2.3 All workmanship, finish and appearance requirementsshall be as described in Section 8.6.
26、2.4 Compliance with inspection requirements shall be inaccordance with Practice C 390.6.2.5 Both Type I and Type II insulations shall conform tothe physical property requirements listed in Table 1.6.3 The material shall be free of objectionable odors at alltemperatures within the recommended use ran
27、ge 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 Test Method E84andthe results shall be reported. See Section 1 of Test Method E84for information regarding the applicability of thi
28、s test methodfor use with cellular plastics and Practice E 2231 for specimenmounting methods. This test does not always define the hazardthat may be presented by preformed flexible cellular polyolefinthermal insulation under actual fire conditions. It is retained forreference in this specification a
29、s laboratory test data requiredby some building codes.6.4.2 Preformed flexible cellular polyolefin thermal insula-tion is an organic material and is combustible. Do not exposeit to flames or other ignition sources. The fire performance ofTABLE 1 Physical Property Requirements (Type ITubular andType
30、IISheet)NOTE 1The values stated in Table 1 are not always appropriate asdesign values. For specific design recommendations using a particularproduct and for supporting documentation, consult the manufacturer.Property Unit RequirementUse temperature, max F (C) 200 (93)Use temperature, min F (C) 150 (
31、101)Thermal conductivity, max.At a mean temperature of:120F (84C) Btu-in./hr-ft2-F 0.29 (0.042)0F (18C) (W/m K) 0.33 (0.048)75F (24C) 0.35 (0.050)120F (49C) 0.37 (0.053)Water-vapor permeability,max.perm-in(g/Pa s m)0.05(7.29 3 109)Water absorption, max., % by volume 0.2linear shrinkage,at maxiumumus
32、e temperature.% linear change 7.0C1427042the 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 different in the vertical orientation from those inthe horizontal ori
33、entation.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 to 4-in. (100mm) nominal pipe size (NPS) with wallthickness up
34、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 Actual dimensions and tolerances shall be agreed uponbetween the
35、 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 to Table 2unless otherwise agreed upon between the supplier and thepurchase
36、r.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 be at the manufacturers option, unless otherwisespecified.9. W
37、orkmanship, 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 shall be agreed upon between thepurchaser and the supplier.10.2 When possib
38、le, 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 physical characteristics to Type I (see11.1.1).11. Test Metho
39、ds11.1 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 specimenhaving a minimum inner diameter of 3 in. by longitudi
40、nallyslitting 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 Apparent Thermal Conductivity:11.2.1 Type IUse in accordance wit
41、h 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 other than those with comparableresults to Test Method C 177. In case of d
42、ispute, 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. Normally, Test Method C 335 is not used todetermine the apparent thermal conduc
43、tivity 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 not be used at tempera-tures or resistance ranges other than those with com
44、parableresults 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 platesof the testing apparatus in accordance with Practice C 1058,Table 3.11.
45、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.Test Method C 1303 shall be used in estimating the long-termchange in the thermal resistance of unfaced closed cell plasticfoams by
46、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 E96desiccant method,with the fo
47、llowing conditions:11.3.2 Use Test Method E96, Method A, desiccant methodwith the environmental conditions set at 50 6 2 % relativehumidity, 73 6 2F (23 6 1C).TABLE 2 Dimensional Tolerances, in. (mm)Type IInside diameter:Up to58 (16) incl. +18 (+ 3) 0 (0)34 (19) to 1-12 (38) incl. +316 (+ 5) 0 (0)1-
48、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%C142704311.3.3 The preferred specimen t
49、hickness shall be12 in. (13mm) with skin on at least one side.11.3.4 If the material has a skin on one or both surfaces, testwith the skin surface toward the high humidity.11.4 Water Absorption: Type I and Type IIUse in accor-dance with Test Methods C 209. Submersion time shall be 24h.11.5 Linear Shrinkage:11.5.1 ScopeThis test method covers the evaluation oflinear shrinkage of flexible cellular non-crosslinked polyolefinthermal insulation.11.5.2 Significance and UseThis test method provides are
