ASTM C892-2005 Standard Specification for High-Temperature Fiber Blanket Thermal Insulation《高温纤维毡绝热的标准规范》.pdf

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1、Designation: C 892 05Standard Specification forHigh-Temperature Fiber Blanket Thermal Insulation1This standard is issued under the fixed designation C 892; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.

2、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 high-temperature fiber blanketthermal insulation for use at various temperatures from 1350F(732C) up to 30

3、00F (1649C), except when used in high-temperature furnaces.1.2 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 health practices and determine the applica-bi

4、lity of regulatory limitations prior to use.1.3 When the installation or use of thermal insulationmaterials, accessories, and systems may pose safety or healthproblems, the manufacturers shall provide the user with appro-priate current information regarding any known problemsassociated with the reco

5、mmended use of the companysproducts, and shall also 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.1.4 The values stated in inch-pound units

6、are to be regardedas the standard.The values given in parentheses 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 RefractoriesC 167 Test Methods for Thickness and D

7、ensity of Blanketor Batt Thermal InsulationC 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 201 Test Method for Thermal Conductivity of Refracto-riesC

8、209 Test Methods for Cellulosic Fiber Insulating BoardC 356 Test Method for Linear Shrinkage of PreformedHigh-Temperature Thermal Insulation Subjected to Soak-ing HeatC 390 Criteria for Sampling and Acceptance of PreformedThermal Insulation LotsC 1058 Practice for Selecting Temperatures for Evaluati

9、ngand Reporting Thermal Properties of Thermal InsulationC 1335 Test Method for Measuring Non-Fibrous Content ofMan-Made Rock and Slag Mineral Fiber Insulation3. Terminology3.1 DefinitionsTerminology C71and Terminology C 168shall be considered as applying to the terms used in thisstandard.3.2 Definit

10、ions 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, varying in flexibility, composed of refractory inor-ganic fibers, with or without binder adde

11、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:Type Temperature of use, F (C), maximumI 13

12、50 (732)II 1600 (871)III 2400 (1316)IV 2600 (1427)V 3000 (1649)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 Nov. 1, 2005. Published Decembe

13、r 2005. Originallyapproved in 1978. Last previous edition approved in 2000 as C 892 00.2For 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 Summar

14、y page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.3 GradesThe product is separated into grades basedupon its density:Grade Density, lb/ft3(kg/m3), nominal3 3 (48)4 4 (64)6 6 (96)8 8 (128)12 12 (192)5. Orderi

15、ng 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 shall be asspecified by the user with

16、the assistance of the supplier wheredesirable.5.3 Inspection and sampling of the material may be speci-fied by the purchaser.5.4 When a certification or test report, or both, is required,this shall be specified by the purchaser.6. Physical and Mechanical Properties6.1 Apparent Thermal Conductivity s

17、hall conform to therequirements of Table 1 when tested in accordance with 10.1.2.6.2 Density shall conform to the requirements of 4.3 with atolerance of +30, 15 % of nominal density when tested inaccordance with 10.1.1.6.3 Temperature of Use shall conform to the requirementsof 4.2 and Table 2 when t

18、ested in accordance with 10.1.4.6.4 Other physical and mechanical properties shall conformto the requirements of Table 2 when tested in accordance withSection 10.7. Dimensions, Weights, and Permissible Variations7.1 Rolls or flat sheets of blanket are normally furnished instandard dimensions as show

19、n in Table 3, Table 4, and Table 5.7.2 Sheets are normally furnished 4 by 8 ft (1219 by 2438mm) at densities above 8 lb/ft3(128 kg/m3).7.3 The standard length, width, and thickness combinationsavailable are a function of the type and grade. Contact thesupplier for information on standard or non-stan

20、dard dimen-sion and combinations.8. Workmanship, Finish, and Appearance8.1 The insulation shall indicate good workmanship infabrication by a uniform appearance, shall not have visibleTABLE 1 Apparent Thermal Conductivity, maximum Btu in./hft2F (W/mK)For Test Method C 177GradeMean Temperature, F (C)4

21、00 (204) 800 (427) 1200 (649) 1600 (871) 2000 (1093)3 0.66 (0.095) 1.13 (0.163) 1.79 (0.258) 2.76 (0.398) 4.20 (0.605)4 0.62 (0.089) 1.03 (0.148) 1.66 (0.239) 2.58 (0.372) 3.83 (0.552)6 0.54 (0.078) 0.94 (0.136) 1.47 (0.212) 2.28 (0.329) 3.33 (0.480)8 0.53 (0.076) 0.92 (0.133) 1.41 (0.203) 2.02 (0.2

22、91) 2.72 (0.392)12 0.53 (0.076) 0.91 (0.131) 1.38 (0.199) 1.80 (0.259) 2.17 (0.313)For Test Method C 201, ModifiedAGradeMean Temperature, F (C)400 (204) 800 (427) 1200 (649) 1600 (871) 2000 (1093) 2500 (1371)3 0.54 (0.078) 1.21 (0.175) 2.34 (0.338) 3.87 (0.558) 5.98 (0.862) 9.54 (1.375)4 0.48 (0.069

23、) 1.02 (0.147) 1.91 (0.275) 3.09 (0.446) 4.69 (0.676) 7.36 (1.061)6 0.43 (0.062) 0.83 (0.120) 1.46 (0.211) 2.30 (0.332) 3.42 (0.493) 5.27 (0.759)8 0.40 (0.058) 0.73 (0.105) 1.24 (0.179) 1.89 (0.273) 2.74 (0.395) 4.09 (0.589)12 0.38 (0.055) 0.64 (0.092) 1.02 (0.147) 1.49 (0.215) 2.08 (0.300) 2.98 (0.

24、429)ARefer to Annex A1 of this specification.TABLE 2 Physical and Mechanical RequirementsProperties RequirementsNon-fibrous content (shot), maximum, % (by weight) 30Linear shrinkage, maximum, % (at maximum usetemperature)5Tensile strength, minimum, lb/in2(KPa)Grade 3 1.0 (6.9)Grade 4 1.5 (10.3)Grade

25、 6 2.0 (13.8)Grade 8 3.0 (20.7)Grade 12 5.0 (34.5)TABLE 3 Thickness DimensionsThickness, in. (mm) Tolerance116 (1.6) +50, 25 %18 (3.2) +50, 25 %316 (4.8) +50, 25 %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

26、.1, 3.2 mm)1 (25.4) +34 ,18 in. ( +19.1, 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 4 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, +10C

27、892052defects such as tears and holes that will adversely affect theservice quality, and shall be free from foreign materials.9. Sampling9.1 The insulation shall be sampled for the purposes of testin accordance with Criteria C 390. Specific provision forsampling shall be agreed upon between the supp

28、lier and thepurchaser.10. Test Methods10.1 The properties enumerated in this specification shall bedetermined in accordance with the following test methods:10.1.1 Dimensional Measurement and DensityTest Meth-ods C 167. Density is based on nominal thickness.10.1.2 Apparent Thermal ConductivityTest Me

29、thodsC 177 or C 201 (modified by the procedure shown in AnnexA1). Temperature of test shall be in accordance with PracticeC 1058.10.1.3 Non-Fibrous Content (Shot)Test Method C 1335Procedure B, with the following exceptions.10.1.3.1 Use U.S. Standard Sieves No. 30, 50, and 70. Thespecimen shall be fi

30、red in a furnace at 2300F (1260C) for 5hr. After passing all particles and fine fiber through Sieve No.50, mechanically shake Sieve No. 70 for 30 min.10.1.3.2 For the purposes of this specification, the unfiber-ized particles are those not passing through a U.S. StandardNo. 70 sieve (210 m opening).

31、 The non-fibrous content is thecumulative weight of unfiberized particles remaining on 30-,50-, and 70-mesh screens.10.1.4 Linear Shrinkage and Temperature of UseTestMethod C 356, except that dimensions shall be determined byTest Methods C 167. The temperature of test shall be thetemperature of use,

32、 as specified in 4.2.10.1.5 Tensile Strength Test Methods C 209, Section 12(parallel to surface), except that rate of separation of the jawsshall be 1 to 2 in./min (25 to 50 mm/min).11. Qualification11.1 Unless otherwise specified, the following requirementsshall be employed for the purpose of initi

33、al material or productqualification:11.1.1 Apparent Thermal Conductivity.11.1.2 Tensile Strength.12. Inspection12.1 Unless otherwise specified, the following requirementsshall be employed for the purposes of acceptance sampling oflots or shipments of qualified insulation:12.1.1 Density.12.1.2 Unfibe

34、rized content.12.1.3 Linear shrinkage and temperature of use.12.1.4 Dimensions.12.1.5 Workmanship, finish, and appearance.12.2 Inspection of the material shall be agreed upon be-tween the purchaser and the supplier as part of the purchasecontract.13. Rejection and Rehearing13.1 If inspection of the

35、samples shows failure to conformto the requirements of the specification, a second samplingfrom the same lot shall be tested and the results of this retestaveraged with the results of the original test.13.1.1 Upon retest as described in 13.1, failure to conformto this specification shall constitute

36、grounds for rejection.13.1.2 In case of rejection, the manufacturer or suppliershall have the right to reinspect the rejected shipment andresubmit the lot after removal of that portion of the shipmentnot conforming to the specified requirements.13.2 Apparent Thermal ConductivityThe need for a testto

37、 determine compliance shall be as agreed upon between thepurchaser and the supplier, but the test shall be made if:13.2.1 Within the 3-year period preceding the date ofpurchase the blanket has not been tested by an acceptabletesting laboratory and found in compliance with the require-ments of 6.1.13

38、.2.2 The blanket offered for delivery is not the same in allrespects as that previously tested by the testing laboratory.14. Certification14.1 When specified in the purchase order or contract, thepurchaser shall be furnished certification that samples repre-senting each lot have been either tested o

39、r inspected as directedin this specification and the requirements have been met. Whenspecified in the purchase order or contract, a report of the testresults shall be furnished.15. Packaging and Package Marking15.1 PackagingUnless otherwise agreed to or specifiedbetween the purchaser and the manufac

40、turer, the product shallbe packaged in the manufacturers standard commercial con-tainers.15.2 MarkingThe container shall be marked with thename and brand or trademark of the manufacturer, quantity,length, width, nominal thickness, type, grade, “Store in DryPlace,” “Use No Hooks,” date of manufacture

41、, and otherinformation as required by the purchaser in the contract orpurchase order.16. Keywords16.1 alumina-silica high temperature thermal insulation;non-fibrous content; thermal conductivity; thermal insulatingmaterials-blanket; non-fibrous contentTABLE 5 Length DimensionsLength, in. (mm) Tolera

42、nceA36 (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.C892053ANNEX(Mandatory Information)A1. MODIFIED CALORIMETER (TEST METHOD C 201)PREPARATION AND PLACEMENT OF FIBROUS INSULATINGMATERIAL I

43、N THERMAL CONDUCTIVITY TESTERA1.1 Selection and Preparation of SampleA1.1.1 The standard sample of fibrous insulation requiresthat new material be available to make a pad 1312 by9by2in.(343 by 229 by 51 mm) thick. The 9 by 1312-in. dimension isusually obtainable in blanket materials. As blankets are

44、 avail-able in several thicknesses, it is often necessary to cut severalpieces of blanket 9 by 1312-in. that can be placed one upon theother to make the 2-in. thickness. The selection of theseindividual blankets shall be made to provide as uniform adensity as possible in each of the individual blank

45、et layers andan individual density as close to the ultimate overall sampledensity as possible. If the blanket is thin enough or of a lowenough density, the layers are to be held over a light box todetect any abnormal variation in density.A1.1.2 The precise cutting of the blanket to size is facili-ta

46、ted by the use of a heavy cardboard or thin sheet steel patterncut square to 9 by 1312-in. (229 by 343 mm). A butcher knifeproduces a good cut.A1.1.3 After cutting to the 9 by 1312-in. (229 by 343-mm)size, the individual blankets are weighed and the densitydetermined. Since the thicknesses of the bl

47、ankets vary, it maybe necessary to compress the assembled layers before instal-lation in the tester so that the assembly is 2 in. (51 mm) thick.This is done by placing a steel plate on top of the sample andloading it to compress the sample to 2 in. The maximumcompression allowed is 15 %.A1.2 Prepara

48、tion of TesterA1.2.1 In order to accurately measure the surface tempera-ture of the calorimeter, a thin-foil thermocouple is applied tothe center of the calorimeter surface. The foil thermocoupleshall be 0.0005 in. (0.0127 mm) or less and may be Type J, K,T, or E. The thermocouple shall be bonded to

49、 an electricallyinsulating matrix 0.003 in. (0.0762 mm) thick or less.The leadsshall be electrically insulated and of sufficient length to exit theapparatus without an internal junction. The thermocouple shallbe held on the surface by a thin layer of adhesive, such asdouble-back tape. After the thermocouple is in place, thesurface shall be painted with a high-emittance coating with anemittance of 0.9 or higher.A1.2.2 The 9 by 1312-in. (229 by 343-mm) silicon carbideslab, approximately34