1、Designation: C892 10Standard 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 This standard do
3、es 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 health practices and determine the applica-bility of regulatory limitations prior to use.1.3 When the potential exists that
4、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 the prod-ucts, and shall also recommend
5、 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.1.4 The values stated in inch-pound units are to be regardedas the standard. The values given in parent
6、heses are mathemati-cal conversions to SI units which are provided for informationonly and are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C71 Terminology Relating to RefractoriesC167 Test Methods for Thickness and Density of Blanket orBatt Thermal InsulationsC168 Terminology
7、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 BoardC356 Test Method for Linear Shrinkage of PreformedHigh-Temperature Thermal Insu
8、lation Subjected to Soak-ing HeatC390 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 InsulationsC665 Specification for Mineral-Fiber
9、Blanket Thermal In-sulation for Light Frame Construction and ManufacturedHousingC680 Practice for Estimate of the Heat Gain or Loss and theSurface Temperatures of Insulated Flat, Cylindrical, andSpherical Systems by Use of Computer ProgramsC795 Specification for Thermal Insulation for Use in Con-tac
10、t with Austenitic Stainless SteelC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1058 Practice for Selecting Temperatures for Evaluatingand Reporting Thermal Properties of Thermal InsulationC1101/C1101M Test Methods for Classifying the Flexibil-ity or Ri
11、gidity of Mineral Fiber Blanket and BoardInsulationC1104/C1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fiber InsulationC1335 Test Method for Measuring Non-Fibrous Content ofMan-Made Rock and Slag Mineral Fiber Insulation3. Terminology3.1 DefinitionsTerminology C71 and
12、 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 state into fibrous form.3.2.2 high-temperature fiber thermal insulation a thermalinsulation,
13、 varying in flexibility, composed of refractory inor-ganic fibers, with or without binder added, and furnished ineither flat sheets or rolls.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 onBlanket and
14、Loose Fill Insulation.Current edition approved Sept. 1, 2010. Published October 2010. Originallyapproved in 1978. Last previous edition approved in 2005 as C892 05. DOI:10.1520/C0892-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceas
15、tm.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 C700, West Conshohocken, PA 19428-2959, United States.4. Classification4.1 The general-type product governed by th
16、is 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 separated into grades basedupon its maximum Apparent Thermal Conductivity values (seeTable 2) and minimum Tensile S
17、trength 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, and total square footage as specifiedin the purchase order.5.2 The type and grade for the intended service
18、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 test report, or both, is required,this shall be specified by the purchaser.6. Materials and Manufacture6.1 C
19、ompositionHigh temperature fiber thermal insula-tion shall be composed of fibers, made of metallic oxides of,but not limited to, silicon, aluminum, calcium, and magnesium.The raw materials, processed from the molten state into spunfibers, are then mechanically interlocked through a needlingprocess i
20、nto insulation blanket felts with out the use ofchemical binders.7. Physical and Mechanical, and Chemical PropertiesRequirements7.1 Apparent Thermal Conductivity shall conform to therequirements of Table 2 when tested in accordance with 11.1.2.7.2 Tensile Strengthshall conform to the requirements of
21、Table 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 4.2 when tested in accordance with 11.1.4.7.5 Non-fibrous content (shot)shall be limited to a maxi-mum of
22、 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, Mass, and Permissible Variations8.1 Rolls or flat sheets of blanket are normally furnished instandard di
23、mensions 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 standard or non-standard dimen-sion and combinations.8.3 The maximum density (determined in accordance wi
24、thTest 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 workmanship infabrication by a uniform appearance, shall not have visibledefects such as tears and holes that wil
25、l 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 provision forsampling shall be agreed upon between the supplier and thepurchaser.11. Test Methods11.1 Th
26、e 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 nominal thickness.11.1.2 Apparent Thermal Conductivity Test in accordancewith Test Methods C177. Temperatur
27、e of test shall be inaccordance with Practice .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, the range of testconditions must include at least one test where the hot surfacetemperature is grea
28、ter 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 desired. The exception to thisrequirement is given in 11.1.2.2(1) below. At least two addi-tional tes
29、ts 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 stipulated in 11.1.2.2, it is acceptable to operate one hotplate at the C177 upper temperature limit a
30、nd 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 athermal conductivity versus mean temperature relationship forthe specimen. Practice C1045 and the specif
31、ic hot and coldsurface temperatures is required 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 f
32、or comparison to thespecification.(1) While it is recommended that the specification data bepresented as conductivity versus temperature, it is possible thatTABLE 1 Classification by TypeType Temperature of use, F (C), maximumI 1350 (732)II 1600 (871)III 2300 (1260)IV 2600 (1427)V 3000 (1649)C892 10
33、2several existing specifications will contain mean temperaturedata from tests conducted at specific hot and cold surfacetemperatures. In these cases, it is possible that the conductivitywill be a as a function of temperature and that the PracticeC1045 analysis will provide different results. To ensu
34、re 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 requiredto determine the effective thermal conductivity for comparisonto the specification requirements.11.1.3 No
35、n-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 the maximum usetemperature for the particular Type for a duration of 5h . Afterpassing all particles and fine fib
36、er 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.S. Standard No. 70 sieve (210 m opening). The shot contentis the cumulative weight of shot remaining on 30-, 50-
37、, 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 thetemperature of use, as specified in 4.2.11.1.5 Tensile Strength Test Methods C209, Section 12(parallel to surface),
38、except that rate of separation of the jawsshall be 1 to 2 in./min (25 to 50 mm/min).11.1.6 Corrosiveness to SteelTest in accordance with thecorrosiveness method of Specification C665.11.1.7 Maximum Use Temperature and Exothermic Tem-perature RiseTest in accordance with Test Method C411andthe hot ser
39、vice 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 in accordance with Test MethodC1101/C1101M (except use 1 in. (25.4 mm) thick material) forcla
40、ssifying the flexibility of the material.11.1.9 Water Vapor Sorption Test in accordance with TestMethod C1104/C1104M for determining the water vaporsorption of the material.TABLE 2 Apparent Thermal Conductivity, maximum Btu in./hft2F (W/mK) at Mean Temperture, F (C)Grade 75 (24) 200 (93) 400 (204) 8
41、00 (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 (.276) 3.06 (.440) 4.75 (.6
42、04)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 Tensile Strength, Minimum
43、GradeTensile 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 (109) 10.5 (168)10 8.5 (13
44、6) 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 informa-tion for stress analyses of pipe and equipment.TABLE 5 Thickness DimensionsThickness, in. (mm) Tolerance11
45、6 (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, 3.2 mm)112
46、(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) ToleranceA3
47、6 (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 10311.1.10 Stress Corrosion Performance for Use on AusteniticStainless SteelWhen specified, test in accordance withSpecification C795.12
48、. Qualification12.1 Unless otherwise specified, the following requirementsshall be employed for the purpose of initial material or productqualification:12.1.1 Apparent Thermal Conductivity.12.1.2 Tensile Strength.13. Inspection13.1 Unless otherwise specified, the following requirementsshall be emplo
49、yed for the purposes of acceptance sampling oflots or shipments of qualified insulation:13.1.1 Flexibility.13.1.2 Nonfibrous content.13.1.3 Linear shrinkage and temperature of use.13.1.4 Dimensions.13.1.5 Workmanship, finish, and appearance.13.2 Inspection of the material shall be agreed upon be-tween the purchaser and the supplier as part of the purchasecontract.14. Rejection and Rehearing14.1 If inspection of the samples shows failure to conformto the requirements of the specificat
