ASTM C155-1997(2018) Standard Classification of Insulating Firebrick.pdf

1、Designation: C155 97 (Reapproved 2018)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 p

2、arentheses 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

3、furnaces.NOTE 1Insulating materials for use below 1000 F (538 C) arecovered2by ASTM Committee C16 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 o

4、nlyand are not considered standard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trad

5、e Organization TechnicalBarriers to Trade (TBT) Committee.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 T

6、his 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 themaximum service temperature, although the number times 100does

7、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 meantto be used for detailed engineering calculations.4. Basis of

8、 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 Methods5.1 The properties enumerated in this classification shall bedetermi

9、ned in accordance with the following ASTM testmethods: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 vari

10、ables 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 apply in instances when the first testresults do not conform to the req

11、uirements 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 density; insulating firebrick; refractories; reheatchange1This clas

12、sification 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 approved Oct. 1, 2018. Published October 2018. Originallyapproved in 19

13、40. Last previous edition approved in 2013 as C155 97 (2013).DOI: 10.1520/C0155-97R18.2For 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

14、 page onthe ASTM website.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 fo

15、r theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard

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19、ocken, 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). Permission rights to pho

20、tocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 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 (0.86)28 2750 (1510) 60 (0.96)30 2950 (1620) 68 (1.09)32 3150 (1730) 95 (1.52)33 3250 (1790) 95 (1.52)C155 97 (2018)2