1、Designation: C892 17Standard Specification forHigh-Temperature Fiber Blanket Thermal Insulation1This standard is issued under the fixed designation C892; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、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 high-temperature fiber blanketthermal insulation for use from ambient up to 3000F(1649C).1.2 When the potenti
3、al exists that the installation or use ofthermal insulation materials, accessories, and systems will posesafety or health problems, the manufacturers shall provide theuser with appropriate current information regarding any knownproblems associated with the recommended use of theproducts, and shall a
4、lso recommend protective measures to beemployed in their safe utilization. The user shall establishappropriate safety and health practices and determine theapplicability of regulatory requirements prior to use.1.3 The values stated in inch-pound units are to be regardedas the standard. The values gi
5、ven in parentheses are mathemati-cal conversions to SI units which are provided for informationonly and are not considered standard.1.4 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 establ
6、ish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles f
7、or theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C71 Terminology Relating to RefractoriesC167 Test Methods for Thickness and Density of Blanket orBatt
8、 Thermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC201 Test Method for Thermal Conductivity of RefractoriesC209 Test Methods for Cellulosic Fiber I
9、nsulating BoardC356 Test Method for Linear Shrinkage of Preformed High-Temperature Thermal Insulation Subjected to SoakingHeatC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC411 Test Method for Hot-Surface Performance of High-Temperature Thermal InsulationC447 Practice for Estima
10、ting the Maximum Use Tempera-ture of Thermal InsulationsC665 Specification for Mineral-Fiber Blanket Thermal Insu-lation for Light Frame Construction and ManufacturedHousingC680 Practice for Estimate of the Heat Gain or Loss and theSurface Temperatures of Insulated Flat, Cylindrical, andSpherical Sy
11、stems by Use of Computer ProgramsC795 Specification for Thermal Insulation for Use in Con-tact with Austenitic Stainless SteelC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Pro
12、perties of Thermal InsulationC1101/C1101M Test Methods for Classifying the Flexibilityor Rigidity of Mineral Fiber Blanket and Board InsulationC1104/C1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fiber InsulationC1335 Test Method for Measuring Non-Fibrous Content ofMan
13、-Made Rock and Slag Mineral Fiber Insulation3. Terminology3.1 DefinitionsTerminology C71 and Terminology C168shall be considered as applying to the terms used in thisstandard.3.2 Definitions of Terms Specific to This Standard:3.2.1 fibersthe fibers shall be refractory oxides, processedfrom a molten
14、state into fibrous form.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 onBlanket and Loose Fill Insulation.Current edition approved Dec. 1, 2017. Published January 2018. Originallyapproved in 1978. Last
15、 previous edition approved in 2010 as C892 10. DOI:10.1520/C0892-17.2For 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 page onthe ASTM w
16、ebsite.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment o
17、f International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.2.2 high-temperature fiber thermal insulation a thermalinsulation, varying in flexibility, composed of refractory inor-ganic fibers, with or without binder adde
18、d, and furnished ineither flat sheets or rolls.4. Classification4.1 The general-type product governed by this specificationis blanket or batt composed of inorganic refractory fibers.4.2 TypesThe product is separated into types based upontemperatures of use (Table 1).4.3 GradesThe product is separate
19、d into grades basedupon its maximum Apparent Thermal Conductivity values (seeTable 2) and minimum Tensile Strength values (see Table 3).5. Ordering Information5.1 High-temperature fiber blanket thermal insulation isnormally purchased on the basis of brand name, type, grade,length, width, thickness,
20、and total square footage as specifiedin the purchase order.5.2 The type and grade for the intended service shall be asspecified by the user with the assistance of the supplier wheredesirable.5.3 The purchaser shall be permitted to specify, inspect andsample the material.5.4 When a certification or t
21、est report, or both, is required,this shall be specified by the purchaser.6. Materials and Manufacture6.1 CompositionHigh temperature fiber thermal insulationshall be composed of fibers, made of metallic oxides of, but notlimited to, silicon, aluminum, calcium, and magnesium. Theraw materials, proce
22、ssed from the molten state into spun fibers,are then mechanically interlocked through a needling processinto insulation blanket felts with out the use of chemicalbinders.7. Physical and Mechanical, and Chemical PropertiesRequirements7.1 Apparent Thermal Conductivity shall conform to therequirements
23、of Table 2 when tested in accordance with 11.1.2.7.2 Tensile Strengthshall conform to the requirements ofTable 3 when tested in accordance with 11.1.5.7.3 Flexibilityshall be classified as flexible when tested inaccordance with 11.1.8.7.4 Maximum Use Temperatureshall conform to the re-quirements of
24、4.2 when tested in accordance with 11.1.4.7.5 Non-fibrous content (shot)shall be limited to a maxi-mum of 30% by weight when testing in accordance with11.1.3.7.6 Linear Shrinkageshall be limited to a maximum of5%, after exposure to the Maximum Use Temperature, inaccordance with 11.1.4.8. Dimensions,
25、 Mass, and Permissible Variations8.1 Rolls or flat sheets of blanket are normally furnished instandard dimensions as shown in Table 4,Table 5, and Table 6.8.2 The standard length, width, and thickness combinationsavailable are a function of the type and grade. Contact thesupplier for information on
26、standard or non-standard dimen-sion and combinations.8.3 The maximum density (determined in accordance withTest Method C167) specified in Table 4 for Grades 3, 4, 6, 8,10, and 12 are for weight design purposes only.9. Workmanship, Finish, and Appearance9.1 The insulation shall indicate good workmans
27、hip infabrication by a uniform appearance, shall not have visibledefects such as tears and holes that will adversely affect theservice quality, and shall be free from foreign materials.10. Sampling10.1 The insulation shall be sampled for the purposes of testin accordance with Practice C390. Specific
28、 provision forsampling shall be agreed upon between the supplier and thepurchaser.11. Test Methods11.1 The properties enumerated in this specification shall bedetermined in accordance with the following test methods:11.1.1 Dimensional Measurement and DensityTest Meth-ods C167. Density is based on no
29、minal thickness.11.1.2 Apparent Thermal ConductivityTest in accordancewith Test Method C177 or C201 (modified by the procedureshown in Annex A1).11.1.2.1 Practice C1058. shall be used to obtain recom-mended test temperature combinations for testing purposes.11.1.2.2 As specified in Practice C1045, t
30、he range of testconditions must include at least one test where the hot surfacetemperature is greater than, or equal to, the hot limit of thetemperature range of desired data and at least one test wherethe cold surface temperature is less than, or equal to, the coldlimit of the temperature range des
31、ired. The exception to thisrequirement is given in 11.1.2.2(1) below. At least two addi-tional tests shall be distributed somewhat evenly over the restof the temperature range.(1) In cases where the maximum temperature of the C177test device is exceeded by the required hot surface temperatureas stip
32、ulated in 11.1.2.2, it is acceptable to operate one hotplate at the C177 upper temperature limit and the other hotplate at the lower temperature that gives the target meantemperature.11.1.2.3 Final analysis of the thermal data shall be con-ducted in accordance with Practice C1045 to generate aTABLE
33、1 Classification by TypeType Temperature of use, F (C), maximumI 1350 (732)II 1600 (871)IIA 2000 (1093)III 2300 (1260)IV 2600 (1427)V 3000 (1649)C892 172thermal conductivity versus mean temperature relationship forthe specimen. Practice C1045 and the specific hot and coldsurface temperatures is requ
34、ired to determine the effectivethermal conductivity for comparison to the specification re-quirements.11.1.2.4 Final step of Practice C1045 analysis would be tocalculate the thermal conductivity using the equations gener-ated at a set of mean temperatures for comparison to thespecification.(1) While
35、 it is recommended that the specification data bepresented as conductivity versus temperature, it is possible thatseveral existing specifications will contain mean temperaturedata from tests conducted at specific hot and cold surfacetemperatures. In these cases, it is possible that the conductivityw
36、ill be a as a function of temperature and that the PracticeC1045 analysis will provide different results. To ensure that thedata is compatible, a Practice C680 analysis, using the con-ductivity versus temperature relationship from Practice C1045and the specific hot and cold surface temperatures, is
37、requiredto determine the effective thermal conductivity for comparisonto the specification requirements.11.1.3 Non-Fibrous Content (Shot)Test Method C1335Procedure B, with the following exceptions.11.1.3.1 Use U.S. Standard Sieves No. 30, 50, and 70. Thespecimen shall first be fired in a furnace at
38、the maximum usetemperature for the particular Type for a duration of 5h. Afterpassing all particles and fine fiber through Sieve No. 50,mechanically shake Sieve No. 70 for 30 min.11.1.3.2 For the purposes of this specification, the nonfibrous content (that is, shot) are those not passing through aU.
39、S. Standard No. 70 sieve (210 m opening). The shot contentis the cumulative weight of shot remaining on 30-, 50-, and70-mesh screens.11.1.4 Linear Shrinkage and Temperature of UseTestMethod C356, except that dimensions shall be determined byTest Methods C167. The temperature of test shall be thetemp
40、erature of use, as specified in 4.2.11.1.5 Tensile StrengthTest Methods C209, Section 12(parallel to surface), except that rate of separation of the jawsshall be 1 to 2 in./min (25 to 50 mm/min).TABLE 2 Apparent Thermal Conductivity, maximum Btu in./hft2F (W/mK) at Mean Temperature, F (C)Grade 75 (2
41、4) 200 (93) 400 (204) 800 (427) 1200 (649) 1600 (871) 2000 (1093)3 0.52 (0.075) 0.56 (0.081) 0.73 (.105) 1.32 (.190) 2.42 (.348) 4.05 (.583) 5.94 (.855)4 0.50 (0.072) 0.54 (0.078) 0.68 (.098) 1.13 (.163) 2.15 (.349) 3.53 (.508) 5.47 (.787)6 0.42 (0.060) 0.47 (0.068) 0.59 (.086) 1.03 (.149) 1.91 (.27
42、6) 3.06 (.440) 4.75 (.604)8 0.41 (0.059) 0.46 (0.066) 0.56 (.081) 1.01 (.146) 1.67 (.241) 2.60 (.374) 4.18 (.682)10 0.40 (0.058) 0.45 (0.065) 0.55 (.079) 0.98 (.141) 1.61 (.231) 2.31 (.333) 3.63 (.523)12 0.37 (0.053) 0.43 (0.062) 0.53 (0.076) 0.96 (.138) 1.43 (.206) 2.11 (.304) 3.14 (.451)TABLE 3 Te
43、nsile Strength, MinimumGradeTensile Strength,lb/in.2(KPa)3 1.0 (6.9)4 1.5 (10.3)6 2.0 (13.8)8 3.0 (20.7)10 4.0 (27.6)12 5.0 (34.5)TABLE 4 Density, Maximum and MinimumGradeMinimum Density ,lbs/ft.3(kg/m3)AMaximum Density ,lbs/ft.3(kg/m3)B3 2.5 (41) 4 (64)4 3.4 (54) 5.5 (88)6 5.1 (82) 8 (128)8 6.8 (10
44、9) 10.5 (168)10 8.5 (136) 13 (208)12 10.2 (163) 16 (256)AMinimum density limitations is for the purpose of maintaining structuralproperties.BMaximum density limitations are for the purpose of providing design informationfor stress analyses of pipe and equipment.TABLE 5 Thickness DimensionsThickness,
45、 in. (mm) Tolerance116 (1.6) +132,164 in. (+0.8, -0.4mm)18 (3.2) +116,132 in. (+1.6, -0.8mm)316 (4.8) +332,364 in. (+2.4, -1.2mm)14 (6.4) +14,18 in. ( +6.4, 3.2 mm)38 (9.5) +38,18 in. ( +9.5, 3.2 mm)12 (12.7) +12,18 in. ( +12.7, 3.2 mm)34 (19.1) +34,18 in. ( +19.1, 3.2 mm)1 (25.4) +34,18 in. ( +19.1
46、, 3.2 mm)112 (38.1) +34,18 in. ( +19.1, 3.2 mm)2 (51.0) +34,14 in. ( +19.6, 6.4 mm)TABLE 6 Width DimensionsWidth, in. (mm) Tolerance, %12 (305) 2, +1018 (457) 2, +1024 (610) 2, +1036 (914) 2, +1039 (991) 2, +1042 (1067) 2, +1048 (1219) 2, +1072 (1829) 2, +10TABLE 7 Length DimensionsLength, in. (mm)
47、ToleranceA36 (914) 048 (1219) 084 (2134) 096 (2438) 0144 (3658) 0150 (3810) 0180 (4572) 0288 (7315) 0300 (7620) 0312 (7925) 0600 (15240) 0ANot limitedexcess is permitted.C892 17311.1.6 Corrosiveness to SteelTest in accordance with thecorrosiveness method of Specification C665.11.1.7 Maximum Use Temp
48、erature and Exothermic Tem-perature RiseTest in accordance with Test Method C411andthe hot service performance of Practice C447 at the maximumuse temperature. All types shall be tested at the insulationsstated maximum thickness, in either single or multiple layerconfigurations.11.1.8 FlexibilityTest
49、 in accordance with Test MethodC1101/C1101M (except use 1 in. (25.4 mm) thick material) forclassifying the flexibility of the material.11.1.9 Water Vapor SorptionTest in accordance with TestMethod C1104/C1104M for determining the water vaporsorption of the material.11.1.10 Stress Corrosion Performance for Use on AusteniticStainless SteelWhen specified, test in accordance with Speci-fication C795.12. Qualification12.1 Unless otherwise specified, the following requirement
