ASTM_E_2814_-_18.pdf

Designation:E281418Standard Specification forIndustrial Woven Wire Filter Cloth1This standard is issued under the fixed designation E2814;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.INTRODUCTIONIndustrial metal filter cloth is a special type of woven wire cloth that can be produced in manyspecifications,often proprietary in nature.Sometimes referred to as Dutch weave or Hollander weave,filter cloth can be woven in a variety of metals and is woven with a greater number of wires in onedirection than the other,and utilizing two different wire diameters.This specification covers wovenwire filter cloth for industrial use,which is commonly rated by its micron retention capability.Itspurpose is to introduce standard terms and definitions,to observe common technical considerationsthat a user should be aware of,and to present alternative acceptance criteria based on a desired poresize,or micron retention filtration rating.It should be noted this specification excludes standardindustrial woven wire cloth and sieve cloth from its scope,since these are covered underSpecifications E2016 and E11,respectively,as well as excludes plastic and synthetic filter cloth.1.Scope*1.1 This specification covers the special grade of industrialwoven wire cloth,referred to as filter cloth,for generalfiltration including the separation of solids from fluids(liquidsor gases),based on a desired particle size retention.Filter clothcan be made of any primary metal or metal alloy wire that issuitable for weaving.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand 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:2A478 Specification for Chromium-Nickel Stainless SteelWeaving and Knitting WireA555 Specification for General Requirements for StainlessSteel Wire and Wire RodsE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE1638 Terminology Relating to Sieves,Sieving Methods,and Screening MediaE2016 Specification for Industrial Woven Wire Cloth2.2 SAE Standards:3ARP-901 Bubble-Point Test Method3.Terminology3.1 Definitions:3.1.1 For additional terminology,refer to TerminologyE1638.3.1.2 bubble point test,na capillary flow test method thatmeasures the pressure required to force an air bubble througha filter cloth sample wetted under a test liquid of known surfacetension.3.1.2.1 DiscussionThe pressure is inversely proportionalto the pore size,should be standardized,and the pressure1This 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.Current edition approved April 1,2018.Published June 2018.Originallyapproved in 2011.Last previous edition approved in 2011 as E2814 11.DOI:10.1520/E2814-18.2For 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.3Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096,http:/www.sae.org.*A Summary 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 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 observed at the first bubble point location is considered theabsolute rating.The test result pressure can be converted to acalculated pore size or micron retention by applying a selectedtortuosity factor.3.1.3 cloth thickness,nthe cross sectional height of thefilter cloth,nominally estimated by adding the warp wirediameter plus two times the shute wire diameter.3.1.4 crimp,ncorrugation in the warp a