ASTM_E_161_-_17.pdf

Designation:E16117Standard Specification forElectroformed Material and Test Sieves1This standard is issued under the fixed designation E161;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers the technical requirements fordesign and construction of electroformed sieves and sievematerial.These sieves are used to perform particle-size analy-sis and in preparing narrowly designated particle-size frac-tions.They may also be used as reference standards whensuitably certified.The method of certifying these sieves isincluded in Annex A1.1.2 The values stated in SI units shall be consideredstandard for the dimensions of the electroformed mesh open-ings and the size of the line width in the electroformed mesh.The values stated in inch-pound units shall be consideredstandard with regard to the sieve frames and to lines per unitlength,as in Table 1.The values given in parentheses aremathematical conversions that are provided for informationalpurposes only,and are not considered standard.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 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 Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C430 Test Method for Fineness of Hydraulic Cement by the45-m(No.325)SieveE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE323 Specification for Perforated-Plate Sieves for TestingPurposesE1638 Terminology Relating to Sieves,Sieving Methods,and Screening Media3.Terminology3.1 DefinitionsFor definitions of related terms,refer toTerminology E1638.3.2 Definitions of Terms Specific to This Standard:3.2.1 electroformed material,nelectrodeposited grid ma-terial consisting of precision openings used as the separationmedia for electroformed sieves.3.2.2 electroformed sieves,nsee test sieve(electro-formed).3.2.3 non-standard frames(electroformed),nsieve framesother than as specified in accordance with Table 2 that may becircular,square,rectangular,or non-metal.3.2.3.1 DiscussionThe frame shall have the electroformedmaterial permanently attached.3.2.4 support grid,nconductive metal screen fused to thesieve material.3.2.5 test sieve(electroformed),na sieve manufactured bymounting electroformed material in a frame,designed for usein particle size analysis by sieving.4.Ordering Information4.1 Orders for items under this specification include thefollowing information as necessary:4.1.1 Name of material(electroformed sieve or electro-formed sieve material),4.1.2 ASTM designation(Specification E161),4.1.3 Quantity of each item,and4.1.4 Standard sieve designation.4.1.4.1 Nominal opening size in micrometres(Table 1,Column 1),and4.1.4.2 Aperture geometry.4.1.5 For testing sieves in standard circular frames:4.1.5.1 Nominal sieve frame diameter,and4.1.5.2 Nominal sieve frame height.1This specification is under the jurisdiction ofASTM Committee E29 on Particleand Spray Characterization and is the direct responsibility of Subcommittee E29.01on Sieves,Sieving Methods,and Screening Media on Sieves,Sieving Methods,andScreening Media.Current edition approved Dec.15,2017.Published January 2018.Originallyapproved in 1960.Last previous edition approved in 2012 as E161 12.DOI:10.1520/E0161-17.2For 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.1.6 For sieve cloth not in frames or in non-standardframes:4.1.6.1 Lateral dimension of sieve mesh,or4.1.6.2 Description of non-standard frame,or both.4.1.7 For sieves requiring supporting grid:4.1.7.1 Support grid desired,and4.1.7.2 Support grid mounted up or down,as assembled inframe.5.Electroformed Material Requ