ASTM_C_134_-_95_2016.pdf

Designation:C13495(Reapproved 2016)Standard Test Methods forSize,Dimensional Measurements,and Bulk Density ofRefractory Brick and Insulating Firebrick1This standard is issued under the fixed designation C134;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 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover procedures for measuring size,dimensional measurement,bulk density,warpage,and square-ness of rectangular dense refractory brick and rectangularinsulating firebrick.More precise determination of bulk densityof refractory brick can be made by Test Methods C20.Stackheight is generally determined only for dense refractories.NOTE1Test Methods C830 and Test Method C914 are also used todetermine bulk density of refractory brick,by different procedures.1.2 The test methods appear in the following order:SectionsSize and Bulk Density4 through 7Warpage of Refractory Brick8 through 10Squareness of Refractory Brick11 through 141.3 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 considered standard.1.4 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-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C20 Test Methods for Apparent Porosity,Water Absorption,Apparent Specific Gravity,and Bulk Density of BurnedRefractory Brick and Shapes by Boiling WaterC830 TestMethodsforApparentPorosity,LiquidAbsorption,Apparent Specific Gravity,and Bulk Densityof Refractory Shapes by Vacuum PressureC914 Test Method for Bulk Density and Volume of SolidRefractories by Wax Immersion3.Significance and Use3.1 Refractory brick are used as modular units in furnaceconstruction and should not deviate significantly from theintended configuration with respect to size,bulk density,flatsurfaces,and right angles.These test methods are particularlysuited for use under field conditions and provide a means todetermine whether the brick meets the requirements considerednecessary to assure a satisfactory refractory construction.SIZE AND BULK DENSITY4.Apparatus4.1 Rule,steel,hook,12 in.(305 mm)in length,graduatedin 0.02-in.(0.5-mm)divisions,for use in measuring individualbrick.The rule has a rigid hardened steel hook consisting of aright-angled piece on one end to fix the zero point of the scaleagainst one face of the brick.The hook is about14in.(6 mm)in width and extends about14in.beyond the back face or,preferably,the edge of the rule.4.2 Rule,stiff steel,hook,36 in.(914 mm)in length,graduated from each end in 0.02-in.(0.5-mm)divisions,for usein measuring stack height and the larger individual brick.The36-in.rule has the same design as the 12-in(305-mm)rule.NOTE2Check the hook rules periodically to determine that they havenot become worn or distorted in use.Other measuring equipment may beused,provided the results are at least as accurate as those obtained withthe hook rule.4.3 Weighing Scale,having a capacity of 20 lb(9 kg)ormore and a sensitivity under load of at least 0.01 lb(4.5 g).5.Sampling5.1 A sample consists of ten brick selected at random.5.2 Preparation of SpecimensRemove any blisters or finsfrom the specimens by lightly rubbing them together.Omit thisstep in the case of insulating firebrick.6.Procedure6.1 Length and WidthMeasure the length and width ofeach of the ten specimens across the middle of each of the faces1These test methods are under the jurisdiction of ASTM Committee C08 onRefractories and are the direct responsibility of Subcommittee C08.03 on PhysicalProperties.Current edition approved June 1,2016.Published June 2016.Originallyapproved in 1938.Last previous edition approved in 2010 as C134 95(2010).DOI:10.1520/C0134-95R16.2For 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 page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 of largest area to the nearest 0.02 in.(0.5 mm).Make andrecord the individual measurements of the two opposite facesof each specimen.6.2 ThicknessDetermine the thickness of insulating fire-brick and record in the same manner as the length and width,as indicated in 6.1.Make the thickness measurements at thecenters of the longer sides of the brick.Determine the thicknessof dense refractory brick in the same manner or,when requiredby specification,calculate the average thickness from the stackheig