ASTM_E_1486_-_14.pdf

Designation:E148614Standard Test Method forDetermining Floor Tolerances Using Waviness,Wheel Pathand Levelness Criteria1This standard is issued under the fixed designation E1486;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 This test method covers data collection and analysisprocedures to determine surface flatness and levelness bycalculating waviness indices for survey lines and surfaces,elevation differences of defined wheel paths,and levelnessindices using the inch-pound system of units.NOTE1This test method is the companion to SI Test MethodE1486M;therefore,no SI equivalents are shown in this test method.NOTE2This test method was not developed for,and does not apply to,clay or concrete paver units.1.1.1 The purpose of this test method is to provide the userwith floor tolerance estimates as follows:1.1.1.1 Local survey line waviness and overall surfacewaviness indices for floors based on deviations from themidpoints of imaginary chords as they are moved along a floorelevation profile survey line.End points of the chords arealways in contact with the surface.The imaginary chords cutthrough any points in the concrete surface higher than thechords.1.1.1.2 Defined wheel path criteria based on transverse andlongitudinal elevation differences,change in elevationdifference,and root mean square(RMS)elevation difference.1.1.1.3 Levelness criteria for surfaces characterized by ei-ther of the following methods:the conformance of elevationdata to the test section elevation data mean or the conformanceof the RMS slope of each survey line to a specified slope foreach survey line.1.1.2 The averages used throughout these calculations areRMS(that is,the quadratic means).This test method givesequal importance to humps and dips,measured up(+)anddown(),respectively,from the imaginary chords.1.1.3 Appendix X1 is a commentary on this test method.Appendix X2 provides a computer program for waviness indexcalculations based on this test method.1.2 The values stated in inch-pound units are to be regardedas standard.No other units of measurement are included in thisstandard.1.3 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 Document2.1 ASTM Standards:2E1486M Test Method for Determining Floor TolerancesUsing Waviness,Wheel Path and Levelness Criteria(Met-ric)3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 defined wheel path traffctraffic on surfaces,orspecifically identifiable portions thereof,intended for definedlinear traffic by vehicles with two primary axles and fourprimary load wheel contact points on the floor and withcorresponding front and rear primary wheels in approximatelythe same wheel paths.3.1.2 levelnessdescribed in two ways:the conformance ofsurface elevation data to the mean elevation of a test section(elevation conformance),and as the conformance of surveyline slope to a specified slope(RMS levelness).3.1.2.1 elevation conformancethe percentage of surfaceelevation data,hi,that lie within the tolerance specified fromthe mean elevation of a test section.The absolute value of thedistance of all points,hi,from the test section data mean istested against the specification,dmax.Passing values arecounted,and that total is divided by the aggregate quantity ofelevation data points for the test section and percent passing isreported.3.1.2.2 RMS levelnessdirectionally dependent calculationof the RMS of the slopes of the least squares fit line through1This test method is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.21on Serviceability.Current edition approved April 1,2014.Published May 2014.Originallyapproved in 1994.Last previous edition approved in 2010 as E1486 98(2010).DOI:10.1520/E1486-14.2For 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 successive 15-ft long sections of a survey line,L.The RMSLVLis compared with the specified surface slope and specifiedmaximum deviation to determine compliance.3.1.3 Waviness Index Terms:3.1.3.1 chord lengththe length of an imaginary straight-edge(chord)joining the two end points at j and j+2k.Thislength is equal to 2ks(see Fig.1)where the survey spacing sis equal to 1 ft and k is equal to 1,2,3,4,and 5 to