1、Designation:D475315Standard Guide forEvaluating,Selecting,and Specifying Balances andStandard Masses for Use in Soil,Rock,and ConstructionMaterials Testing1This standard is issued under the fixed designation D4753;the number immediately following the designation indicates the year oforiginal adoptio
2、n 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.Scope*1.1 This guide provides minimum requirements for general-purpose scales,balances,and
3、standard masses used in testingsoil,rock,and related construction materials.1.2 This guide provides guidance for evaluating,selecting,and specifying general purpose scales,balances,and standardmasses used in testing soil,rock,and related constructionmaterials.1.3 The accuracy requirements for balanc
4、es and scales arespecified in terms of the combined effect of all sources of errorcontributing to overall balance performance.The measurementof specific sources of error and consideration of detailspertaining to balance construction has been intentionallyavoided.1.4 This guide does not include requi
5、rements for balancesand scales having accuracies greater than those generallyrequired in testing soil,rock,and related construction materialsor for research programs or specialized testing requirements.1.5 This guide does not apply to nongraduated balances.1.6 This guide does not address the methods
6、 used to verifyor quantify specific parameters dealing with balances andscales.For a description of tests used in evaluating balanceperformance,see NIST Handbook 44.1.7 This guide is not intended to be used as a specificationfor the purchase of balances and scales.NOTE1The National Institute of Stan
7、dards and Technology(NIST),formerly the National Bureau of Standards(NBS),and the InternationalOrganization of Legal Metrology(OIML)publish standards or practicesthat specify construction requirements as well as performance guides forbalances.ASTM,OIML,and NIST publish construction standards andtole
8、rances for standard masses.NOTE2The terms“mass”and“determine the mass of”are used in thisstandard instead of the more commonly used terms“weight”and“weigh”to comply with standard metric practice.In addition,the term“standardmass(es)”is used instead of standard“standard weight(s)”when referringto a p
9、iece of material of known specified mass used to compare or measurethe mass of other masses.1.8 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action.This document cannot replace education orexperience and should be used in c
10、onjunction with professionaljudgment.Not all aspects of this guide may be applicable in allcircumstances.This ASTM standard is not intended to repre-sent or replace the standard of care by which the adequacy ofa given professional service must be judged nor should thisdocument be applied without con
11、sideration of a projects manyunique aspects.The word“Standard”in the title of thisdocument means only that the document has been approvedthrough the ASTM consensus process.1.9 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility o
12、f 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:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsE617 Specification for Laboratory Weights and
13、PrecisionMass Standards2.2 National Institute of Standards and Technology Docu-ments:NIST Handbook 44 Specifications,Tolerances,and OtherTechnical Requirements for Weighing and MeasuringDevices31This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rockand is the direct responsibilit
14、y of Subcommittee D18.95 on Information Retrievaland Data Automation.Current edition approved May 1,2015.Published May 2015.Originallyapproved in 1987.Last previous edition approved in 2007 as D4753 07.DOI:10.1520/D4753-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact
15、ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaithersburg,MD 20899-1070,http:/www.nist.gov.*A S
16、ummary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.3 International Organization for Legal Metrology(OIML):4International Recommendations OIML R 1111 Edition2004(E)Weights of classes E1,E2,F1,F2,M1,M12,M2,M23,and M3Part 1:Metrological and technical requirementsInternational Recommendations OIML R 1112 Edition2004(E)Weights of classes E1,E2,F1,F2,M1,M12,M2,M23,and M3Part 2:Test
