1、Designation:C15597(Reapproved 2013)Standard Classification ofInsulating Firebrick1This standard is issued under the fixed designation C155;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 parenthe
2、ses indicates the year of last reapproval.Asuperscript epsilon()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 industrial furnaces.NOT
3、E1Insulating materials for use below 1000F(538C)arecovered2by ASTM Committee C-16 on Thermal Insulation.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not co
4、nsidered standard.2.Referenced Documents2.1 ASTM Standards:2C134 Test Methods for Size,Dimensional Measurements,and Bulk Density of Refractory Brick and InsulatingFirebrickC210 Test Method for Reheat Change of Insulating Firebrick3.Significance and Use3.1 This classification establishes an orderly g
5、rouping ofinsulating firebrick to provide group identifications for use bythose producing or purchasing these materials.The groupidentification number is not meant to specifically designate themaximum service temperature although the number times 100does approximate the temperature(in degrees Fahren
6、heit)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 meantto be used for detailed engineering calculations.4.Basis of Classification4.1 The classification of insulatin
7、g 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 Methods5.1 The properties enumerated in this classification shall bedetermined in accordance with the following ASTM testmethod
8、s:5.1.1 Bulk DensityTest Methods C134.5.1.2 Reheat ChangeTest Method C210.For the purposeof this classification,the percentage of reheat change shall beobtained from only the 9-in.(228-mm)dimension of the testbrick.6.Retests6.1 Because of variables resulting from sampling and thelack of satisfactory
9、 reproducibility in tests conducted bydifferent laboratories,the material may be resampled andretested when requested by either the manufacturer or thepurchaser.This may apply in instances when the first testresults do not conform to the requirements prescribed in thisclassification.The final result
10、s 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 density;insulating firebrick;refractories;reheatchange1This classification is under the jurisdiction of ASTM Committee C08 onRefr
11、actories and is the direct responsibility of Subcommittee C08.92 on The JosephE.Kopanda Subcommittee for Editorial,Terminology and Classification.Current edition approved Sept.1,2013.Published September 2013.Originallyapproved in 1940.Last previous edition approved in 2007 as C155 97(2007).DOI:10.15
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