1、Designation: C1427 16Standard 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 cas
2、e 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.1. Scope1.1 This specification covers extruded preformed flexiblecellular polyolefin thermal insulation
3、 operating temperaturesfrom 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. 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 thermal insulation,which have been deemed mandatory for thermal design.Physical properties such as densi
5、ty 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 values stated in inch-pound units are to be regardedas standard. The values given in parentheses are m
6、athematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 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
7、 health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot
8、-Plate ApparatusC335 Test Method for Steady-State Heat Transfer Propertiesof 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
9、of Thermal InsulationsC518 Test Method for Steady-State Thermal TransmissionProperties 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
10、 for Nominal Sizes of Pipe and TubingC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting
11、Thermal Properties of Thermal InsulationC1114 Test Method for Steady-State Thermal TransmissionProperties by Means of the Thin-Heater ApparatusC1303 Test Method for Predicting Long-Term Thermal Re-sistance of Closed-Cell Foam InsulationC1304 Test Method for Assessing the Odor Emission ofThermal Insu
12、lation MaterialsC1763 Test Method for Water Absorption by Immersion ofThermal Insulation MaterialsD883 Terminology Relating to PlasticsD1622 Test Method for Apparent Density of Rigid CellularPlasticsD1667 Specification for Flexible Cellular MaterialsPoly(Vinyl Chloride) Foam (Closed-Cell)D3575 Test
13、Methods for Flexible Cellular Materials MadeFrom Olefin PolymersE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterials1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the di
14、rect responsibility of Subcommittee C16.22 onOrganic and Nonhomogeneous Inorganic Thermal Insulations.Current edition approved Dec. 1, 2016. Published January 2017. Originallyapproved in 1999. Last previous edition approved in 2013 as C1427 13. DOI:10.1520/C1427-16.2For referenced ASTM standards, vi
15、sit 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2
16、959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical
17、 Barriers to Trade (TBT) Committee.1E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE228 Test Method for Linear Thermal Expansion of SolidMaterials With a Push-Rod DilatometerE456 Terminology Relating to Quality and StatisticsE691 Practice for Conducting an Interlaboratory S
18、tudy toDetermine the Precision of a Test MethodE2231 Practice for Specimen Preparation and Mounting ofPipe and Duct Insulation Materials to Assess SurfaceBurning Characteristics2.2 Other Standards:CAN/ULC-S102.2 Standard Method of Test for SurfaceBurning Characteristics of Flooring, Floor Coverings
19、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 Specific to This Standard:3.2.1 polyolefinpolymers made by the polymerization ofolefins, such as ethylene or propyle
20、ne 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 cell construction.3.2.2.1 DiscussionThese materials are considered foamplastics.3.2.3 natural skincontinuous polymer
21、 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 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-
22、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 thermal insu-lation shall be of the following types:4.1.1 Type Itubular.4.1.2 Type IIsheet.5. Material5.1 These pr
23、oducts 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. These gases will diffuse from the insulation with timea
24、fter 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 determiningthermal performance.6. Physical Requirements6.1 Qualifi
25、cation 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 The requirements for water absorption listed in Table1 is
26、 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 All workmanship, finish and appearance requirementsshall
27、be as described in Section 8.6.2.4 Compliance with inspection requirements shall be inaccordance with Practice C390.6.2.5 Both Type I and Type II insulations shall conform tothe respective physical property requirements listed in Table 1.6.3 The material shall be free of objectionable odors at allte
28、mperatures 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 E84. Forapplications in Canada test to CAN/ULC-S102.2. When thereferenced Canad
29、ian document in this specification is referredto in applicable Canadian building codes, the editions, refer-enced by those building codes shall govern. The results shall bereported. See Section 1 of Test Method E84 for informationregarding the applicability of this test method for use withcellular p
30、lastics and Practice E2231 for specimen mountingmethods. This test does not always define the hazard poten-tially resulting from burning of preformed flexible cellularTABLE 1 Physical Property Requirements (Type ITubular andType IISheet)NOTE 1The values stated in Table 1 are not always appropriate a
31、sdesign 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 (101)Thermal conductivity, max.At a mean temperature of:120F (84C) Btu-i
32、n./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(7.29 109)Water absorption, max., % by volume 0.2linear shrinkage,at maxiumumuse temperature.% linear change 7.0C1427 162polyolefin thermal insulation u
33、nder actual fire conditions. It isretained for reference in this specification as laboratory testdata required by applicable codes and regulations.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 s
34、ources. 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 different in the vertical orientation from those inthe horizontal orientation.7
35、. 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 to 1-in. (
36、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 manufactu
37、rer 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 2unless otherwise agreed upon between the supplier and thepurchaser.8. Surfac
38、e8.1 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. Workmanship,
39、 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 upon between thepurchaser and the supplier.10.2 When possible, the ins
40、ulation 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 Methods11.1 The
41、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 longitudinallyslitti
42、ng 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 with Test Meth
43、od 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 comparableresults to Test Method C177. In case of dispute, Test MethodC1
44、77 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 not used todetermine the apparent thermal conductivity values for Type 1
45、 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 resistance ranges other than those with comparableresults to Test Method
46、 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 accordance with Practice C1058,Table 3.11.2.4 All materials shall be aged
47、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 C1303 shall be used in estimating the long-termchange in the thermal resistance of unfaced closed cell plasticfoams by slicing and scaling under control
48、led laboratoryconditions, providing the material meets the requirements forhomogeneity as defined in Test Method C1303.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)1-58 (41) to 2-38 (60) incl. +14 (+ 6) 0 (
49、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. 116 (2)Over12 (13) 332 (3)Length and width: 3 %C1427 16311.3 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 conditions:11.3.2 Use Test Method E96/E96M, Method A, desiccantmethod with the environmental conditions set
