ASTM_E_1486M_-_14.pdf

Designation:E1486M14Standard Test Method forDetermining Floor Tolerances Using Waviness,Wheel Pathand Levelness Criteria(Metric)1This standard is issued under the fixed designation E1486M;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 SI units.NOTE1This test method is the companion to inch-pound Test MethodE1486.NOTE2This test method was not developed for,and does not apply toclay 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 by theconformance of the RMS slope of each survey line to aspecified slope for each survey line.1.1.2 The averages used throughout these calculations arethe root mean squares,RMS(that is,the quadratic means).Thistest method gives equal importance to humps and dips,measured up(+)and down(),respectively,from the imagi-nary 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 SI units are to be regarded asstandard.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:2E1486 Test Method for Determining Floor Tolerances UsingWaviness,Wheel Path and Levelness Criteria3.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 survey lineslope 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 from the mean elevation ofall data within a test section.The absolute value of the distanceof all points,hi,from the test section data mean is tested againstthe specification,dmax.Passing values are counted,and thattotal is divided by the aggregate quantity of elevation datapoints for the test section,and percent passing is reported.3.1.2.2 RMS levelnessdirectionally dependent calculationof the RMS of the slopes of the least squares fit line throughsuccessive 4.5-m long sections of a survey line,L.The RMS1This 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 E1486M 98(2010).DOI:10.1520/E1486M-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 LVLis compared to 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,s,is equal to 0.3 m,and where k is equal to 1,2,3,4,