1、Designation: C534/C534M 13C534/C534M 14Standard Specification forPreformed Flexible Elastomeric Cellular Thermal Insulationin Sheet and Tubular Form1This standard is issued under the fixed designation C534/C534M; the number immediately following the designation indicates the yearof original adoption
2、 or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers preformed flexible elastomeric cellular thermal in
3、sulation in sheet and tubular form. Grade 1covers materials to be used on commercial or industrial systems with operating temperatures from -183 to 104C -297 to 220F,Grade 2 covers material used on industrial systems with operating temperatures from -183 to 175C -297 to 350F, and Grade3 covers mater
4、ial used on industrial systems with operating temperatures from -183 to 120C -297 to 250F where halogens arenot permitted.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, e
5、ach system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to
6、 establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Propert
7、ies by Means of theGuarded-Hot-Plate ApparatusC209 Test Methods for Cellulosic Fiber Insulating BoardC390 Practice for Sampling and Acceptance of Thermal Insulation LotsC335 Test Method for Steady-State Heat Transfer Properties of Pipe InsulationC411 Test Method for Hot-Surface Performance of High-T
8、emperature Thermal InsulationC447 Practice for Estimating the Maximum Use Temperature of Thermal InsulationsC518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusC534 Specification for Preformed Flexible Elastomeric Cellular Thermal Insulation in
9、Sheet and Tubular FormC585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and TubingC692 Test Method for Evaluating the Influence of Thermal Insulations on External Stress Corrosion Cracking Tendency ofAustenitic Stainless SteelC795 Specification for Thermal I
10、nsulation for Use in Contact with Austenitic Stainless SteelC871 Test Methods for Chemical Analysis of Thermal Insulation Materials for Leachable Chloride, Fluoride, Silicate, andSodium IonsC1045 Practice for Calculating Thermal Transmission Properties Under Steady-State ConditionsC1058 Practice for
11、 Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal InsulationC1114 Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater ApparatusC1304 Test Method for Assessing the Odor Emission of Thermal Insulation MaterialsC1427 Specification fo
12、r Extruded Preformed Flexible Cellular Polyolefin Thermal Insulation in Sheet and Tubular Form1 This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on Organic andNonhomogeneous Inorganic Thermal Insulations.
13、Current edition approved June 1, 2013April 15, 2014. Published June 2013July 2014. Originally approved in 1964. Last previous edition approved in 20112013 asC0534/C534M - 11.C0534/C534M - 13. DOI: 10.1520/C0534_C0534M-13.10.1520/C0534_C0534M-14.2 For referencedASTM standards, visit theASTM website,
14、www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of
15、what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered
16、the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D883 Terminology Relating to PlasticsD1622 Test Method for Apparent Density of Rigid Cellular PlasticsD1667 Specification for Flexible Cellular MaterialsPoly (Vinyl
17、 Chloride) Foam (Closed-Cell)E84 Test Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission of MaterialsE177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE456 Terminology Relating to Quality and StatisticsE691 Pract
18、ice for Conducting an Interlaboratory Study to Determine the Precision of a Test MethodE2231 Practice for Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface BurningCharacteristics2.2 Other Standards:3CAN/ULC-S102 Standard Method of Test for Surface Burning Char
19、acteristics of Building Materials and Assemblies3. Terminology3.1 DefinitionsTerms used in this specification are defined in Terminology C168 and in Terminology D883.3.2 Definitions of Terms Specific to This Standard:3.2.1 cellular elastomeric foama closed-cell foam made of natural or synthetic rubb
20、er, or a mixture of the two, and containingother polymers, other chemicals, or both, which is permitted to be modified by organic or inorganic additives. These foams haveproperties similar to those of vulcanized rubber, namely, (1) the ability to be converted from a thermoplastic to a thermosettings
21、tate by cross-linking (vulcanization) and (2) the ability to recover substantially its original shape when strained or elongated.3.2.2 flexible cellulara flexible cellular organic polymeric material shall not rupture within 60 s when a specimen 200 by 25by 25 mm 8 by 1 by 1 in. is bent around a 25-m
22、m 1-in. diameter mandrel at a uniform rate of one lap in 5 s in the form ofa helix at a temperature between 18 and 29C 65 and 85F.NOTE 1The flexibility of these materials may decrease at lower temperatures.4. Classification4.1 The types are designated below:4.1.1 Type ITubular.Grade 1 Use temperatur
23、e -183 to 104C -297 to 220F.Grade 2 Use temperature -183 to 175C -297 to 350F.Grade 3 Use temperature -183 to 120C -297 to 250F.4.1.2 Type IISheet.Grade 1 Use temperature -183 to 104C -297 to 220F.Grade 2 Use temperature -183 to 175C -297 to 350F.Grade 3 Use temperature -183 to 104C -297 to 220F.4.2
24、 Grade 1 is flexible elastomeric material for use on typical commercial systems.4.3 Grade 2 is a high temperature flexible elastomeric material.4.4 Grade 3 is an elastomeric material that does not contain any leachable chlorides, fluorides or polyvinyl chloride.NOTE 2Continuous long-term exposure at
25、 or above the upper use temperature may cause degradation in the form of loss of flexibility5. Materials5.1 These products shall be made of a homogeneous blend of natural or synthetic rubber that is permitted to be modified withvarious thermoplastic or thermosetting resins, plasticizers, modifiers,
26、antioxidants, curatives, blowing agents and other additives.These products are thermoset and are not thermoplastic in nature.5.2 These products are expanded with chemical blowing agents that decompose with the application of heat.The gases producedby these blowing agents are similar to those found i
27、n the atmosphere and thus the diffusion rate is not significant. These gases donot change over time and the thermal conductivity of the insulation is stable over time.5.3 Flexible, elastomeric, cellular thermal insulations shall be of uniform core density and have closed cells. Even though theseinsu
28、lation materials are permitted to have a smooth skin surface on one or both sides, they are to be considered homogeneous forthe purposes of determining thermal performance.3 Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas, WA 98607-8542, http:/.C534/C534M 1426. Physical Requ
29、irements6.1 Qualification RequirementsThermal conductivity, water vapor permeability and dimensional stability physical propertieslisted in Table 1, are defined as qualification requirements (refer to Practice C390, Section 5, Classification of Requirements andSection 6, Acceptance for Qualification
30、 Requirements).6.2 Inspection Requirements:6.2.1 The requirements for water absorption listed in Table 1 is defined as an inspection requirement (refer to Practice C390,Section 5, Classification of Requirements, and Section 7, Acceptance for Inspection Requirements).6.2.2 All dimensional requirement
31、s shall be as described in Section 6 and Table 2.6.2.3 All workmanship, finish and appearance requirements shall be as described in Section 9.6.2.4 Compliance with inspection requirements shall be in accordance with Practice C390.6.3 Both Type I and Type II insulations shall conform to the physical
32、property requirements listed in Table 1.6.4 The material shall be free of objectionable odors at all temperatures within the recommended use range when testedaccording to Test Method C1304.6.5 Surface Burning CharacteristicsThe material shall be tested to assess its surface burning characteristics,
33、at the thicknesssupplied, in accordance with Test Method E84 with mounting according to Practice E2231. The results shall be reported. InCanada, use Test Method CAN/ULC-S102 and report the results.6.5.1 This test method does not always define the hazard potentially presented by preformed flexible el
34、astomeric cellularthermal insulation under actual fire conditions. It is retained for reference in this standard as test data are required by some codes.6.5.2 Preformed flexible cellular elastomeric thermal insulation is an organic material and is combustible. Do not exposed it toflames or other ign
35、ition sources. In some applications, the fire test response characteristics of the material are addressed throughrequirements established by the appropriate governing documents.6.6 Leachable Chloride/Fluoride ContentGrade 3 shall be below the detectable limit of the test procedure used for leachable
36、chlorides or fluorides when tested according to Test Method C871.7. Standard Shapes, Sizes and Dimensions7.1 Type ITubular materials are manufactured in 1.83 m 72 in. standard lengths, as well as in continuous lengths. Insulationis manufactured for diameters up to 200 mm 8 in. nominal pipe size (NPS
37、) with wall thickness up to 50 mm 2 in.7.2 Type IISheet material is manufactured in thicknesses up to 50 mm 2 in. Sheets are manufactured in sizes up to 1.22 m48 in. in width and in continuous lengths. Other sizes are available upon request. Individual dimensions shall conform to thosespecified by t
38、he manufacturer.7.3 Actual dimensions shall be agreed upon between the manufacturer and the purchaser. The procedure section and the pipeand tubing diameter information of Practice C585 is beneficial in determining these actual dimensions.7.4 The insulation tolerances shall conform to Table 2.8. Sur
39、face8.1 Type IAll surfaces (except ends and slits that are mechanically cut) shall have natural skins.TABLE 1 Physical Requirements for Type I (Tubular) and Type II (Sheet)AProperty Unit Grade 1 Grade 2(higher temperature)Grade 3(non-chloride/non-fluoride containing)Apparent thermal conductivity, ma
40、x.,at a mean temperature of:W/mK Btuin./hft2F-150C-238F 0.0230.16 0.023 0.16 0.023 0.16-150C -238F 0.0230.16 0.023 0.16 0.023 0.16-100C -148F 0.028 0.18 0.028 0.18 0.028 0.18-29C -20F 0.036 0.25 0.036 0.25 0.036 0.25-18C 0F 0.038 0.26 0.038 0.26 0.038 0.2624C 75F 0.040 0.28 0.043 0.30 0.040 0.2850C
41、120F 0.043 0.30 0.047 0.32 0.043 0.3086C 150F 0.045 0.31 0.049 0.34 0.045 0.31150C 300F NA 0.061 0.42 NAWater absorption, max. % by volume 0.20 0.20 0.20Water-vapor permeability, max. g/Pasm perm-in. 1.44 10-10 0.10 1.44 10-10 0.10 1.44 10-10 0.10Water-vapor permeability, max. g/Pasm perm-in. 1.44 1
42、0-10 0.10 4.32 10-10 0.30 4.32 10-10 0.30Linear shrinkage,max after soak at maximumuse temperature% linear change 7.0 % 7.0 % 7.0 %A Table 1 describes two types of flexible elastomeric cellular thermal insulation. The values stated in Table 1 may not always be appropriate as design values. For speci
43、ficdesign recommendations using a particular product and for supporting documentation, consult the manufacturer.C534/C534M 1438.2 Type IISheet material is manufactured either with skin on one side or with skin on two sides. The surface shall be at themanufacturers option, unless otherwise specified.
44、9. Workmanship, Finish, and Appearance9.1 The insulation shall be free of visual defects that will adversely affect the service quality. For example, blisters, blow holesand tears when occurring to an excessive degree shall be judged to adversely affect the service quality of the material.10. Sampli
45、ng10.1 The insulation shall be sampled in accordance with Practice C390. Details shall be agreed upon between the buyer andseller.10.2 When possible, the insulation shall be tested in the form supplied. However, when Type I does not lend itself to testingor to making of test specimens because of its
46、 shape, standard test sheets shall be prepared from tubular material having equivalentphysical characteristics to Type I (see 10.1 and 11.1.2).11. Test Methods11.1 Test Conditions:11.1.1 The physical requirements enumerated in this specification shall be determined in accordance with the following t
47、estmethods:11.1.2 When standard test sheets are required for tubular material, they shall be prepared by longitudinally slitting the tubularspecimens along one wall thickness, opening and laying the sample flat.11.1.3 These products are produced with either skin on one side or skin on both sides. Te
48、sting shall be done in the final enduse form.11.2 Apparent Thermal Conductivity:11.2.1 Type IChoose from Test Methods C177, C518, C1114 or C335 in conjunction with Practice C1045. Use standard testsheet for C177, C518 or C1114.NOTE 3Test Method C335 may be used for below ambient conditions. The auth
49、ors of this reference state, “the regression curves for sheet and pipeinsulation agree with 1.5% and 2.5% at mean temperatures of 25 and 10C, respectively. The measured apparent thermal conductivites of both typesof materials are well below the maxima allowed by C534.411.2.2 Type IIChoose from Test Methods C177, C518 or C1114 in conjunction with Practice C1045.11.2.3 Tes
