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    ASTM C155-1997(2007) Standard Classification of Insulating Firebrick《绝热耐火砖的标准分类》.pdf

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    ASTM C155-1997(2007) Standard Classification of Insulating Firebrick《绝热耐火砖的标准分类》.pdf

    1、Designation: C 155 97 (Reapproved 2007)Standard Classification ofInsulating Firebrick1This standard is issued under the fixed designation C 155; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in

    2、 parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This classification covers heat insulating materialknown as insulating firebrick. This material is suitable forlining certain kinds of industri

    3、al furnaces.NOTE 1Insulating materials for use below 1000F (538C) arecovered2by ASTM Committee C-16 on Thermal Insulation.2. Referenced Documents2.1 ASTM Standards:2C 134 Test Methods for Size, Dimensional Measurements,and Bulk Density of Refractory Brick and InsulatingFirebrickC 210 Test Method for

    4、 Reheat Change of Insulating Fire-brick3. Significance and Use3.1 This classification establishes an orderly grouping ofinsulating firebrick to provide group identifications for use bythose producing or purchasing these materials. The groupidentification number is not meant to specifically designate

    5、 themaximum service temperature although the number times 100does approximate the temperature (in degrees Fahrenheit) to beused to check the reheat change and can be used as a guide forrelative temperature stability. The bulk density limits theweight per unit volume for any group as sold, but is not

    6、 meantto be used for detailed engineering calculations.4. Basis of Classification4.1 The classification of insulating firebrick in accordancewith Table 1 is based on bulk density (weight per cubic foot)and the behavior in the reheat change test conducted at thespecified temperature.5. Test Methods5.

    7、1 The properties enumerated in this classification shall bedetermined in accordance with the following ASTM testmethods:5.1.1 Bulk DensityTest Methods C 134.5.1.2 Reheat ChangeTest Method C 210. For the purposeof this classification, the percentage of reheat change shall beobtained from only the 9-i

    8、n. (228-mm) dimension of the testbrick.6. Retests6.1 Because of variables resulting from sampling and thelack of satisfactory reproducibility in tests conducted bydifferent laboratories, the material may be resampled andretested when requested by either the manufacturer or thepurchaser. This may app

    9、ly in instances when the first testresults do not conform to the requirements prescribed in thisclassification. The final results to be used shall be the averageof at least two sets of results, each of which has been obtainedby following in detail the specified testing procedures.7. Keywords7.1 bulk

    10、 density; insulating firebrick; refractories; reheatchange1This classification is under the jurisdiction of ASTM Committee C08 onRefractories and is the direct responsibility of Subcommittee C08.92 on The JosephE. Kopanda Subcommittee for Editorial, Terminology and Classification.Current edition app

    11、roved March 1, 2007. Published April 2007. Originallyapproved in 1940. Last previous edition approved in 2002 as C 155 97 (2002).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informati

    12、on, refer to the standards Document Summary page onthe ASTM website.TABLE 1 Grouping of Insulating FirebrickGroupNo.Reheat Change, NotMore Than 2 %When Tested atF (C)Bulk DensityNot GreaterThan lb/ft3(g/cm3)16 1550 (845) 34 (0.54)20 1950 (1065) 40 (0.64)23 2250 (1230) 48 (0.77)26 2550 (1400) 54 (0.8

    13、6)28 2750 (1510) 60 (0.96)30 2950 (1620) 68 (1.09)32 3150 (1730) 95 (1.52)33 3250 (1790) 95 (1.52)1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asser

    14、ted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by

    15、the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receiv

    16、e careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM Intern

    17、ational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 155 97 (2007)2


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