1、Designation:E16112Standard Specification forPrecision Electroformed 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 ind
2、icates 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 requirements for designand construction of electr
3、oformed sieves.These sieves are usedto perform particle-size distribution analysis and in preparingnarrowly designated particle-size fractions.They may also beused as reference standards when suitably calibrated.Amethodof calibrating these sieves is included in Annex A1.NOTE1Complete instructions an
4、d procedures on the use and calibra-tion of testing sieves are contained inASTM Manual 32.2This publicationalso contains a list of all published ASTM Standards on sieve analysisprocedures for specific materials or industries.1.2 The sieve analysis results from two testing sieves of thesame sieve des
5、ignation may not be the same because of thevariances in sieve opening permitted by this specification.Tominimize the differences in sieve analysis results,the use oftesting sieves matched on a performance basis is suggested.NOTE2For other types of sieves,see Specifications E11 and E323.1.3 The value
6、s stated in SI units shall be consideredstandard for the dimensions of the electroformed mesh open-ings and the size of the wires in the electroformed mesh.Thevalues stated in inch-pound units shall be considered standardwith regard to the sieve frames.1.4 This standard does not purport to address a
7、ll 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:3C430 Test Method for Fi
8、neness 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 Media2.2 ISO Standard:4ISO 565 Test sievesMetal Wire
9、Cloth,Perforated Plateand Electroformed Sheet-Nominal Aperture Sizes3.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
10、 used as the base materialfor 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 of Specifi-cation E161 that may be circular,square,rectangular,ornon-metal.3.2.3.1 Di
11、scussionThe frame may have the electroformedsheet permanently attached,or it may be designed so theelectroformed sheet is replaceable.3.2.4 support grid,nconductive metal grid mounted to thesieve sheet.1This specification is under the jurisdiction ofASTM Committee E29 on Particleand Spray Characteri
12、zation and is the direct responsibility of Subcommittee E29.01on Sieves,Sieving Methods,and Screening Media on Sieves,Sieving Methods,andScreening Media.Current edition approved April 1,2012.Published May 2012.Originallyapproved in 1960.Last previous edition approved in 2010 as E161 00(2010).DOI:10.
13、1520/E0161-12.2ASTM Manual 32,Manual on Test Sieving Methods,available from ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume informa
14、tion,refer to the standards Document Summary page onthe ASTM website.4Available from International Organization for Standardization(ISO),1,ch.dela Voie-Creuse,Case postale 56,CH-1211,Geneva 20,Switzerland,http:/www.iso.ch.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohock
15、en,PA 19428-2959.United States1 3.2.5 test sieve(electroformed),na sieve manufactured bymounting electroformed material consisting of high precisionopenings in a frame,designed for use in particle size analysisby sieving.4.Ordering Information4.1 Orders for items under this specification include the
16、following information as necessary:4.1.1 Name of material(Electroformed Sieve),4.1.2 ASTM designation and year of issue(SpecificationE161 XX),4.1.3 Quantity of each item,and4.1.4 Standard sieve designation(Table 1,Column 1).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.4.1.6 For sieve cloth not in frames or in non-standardframes:4.1.6.1 Lateral dimension of sieve mesh,and4.1.6.2 Description of non-standard frame.4.