ASTM_D_5077_-_90_2021.pdf

Designation:D507790(Reapproved 2021)Standard Terminology Relating toElectrostatic Discharge(ESD)Packaging Materials1This standard is issued under the fixed designation D5077;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 The terms and definitions in this standard are related toElectrostatic Discharge(ESD)Packaging Materials and ESDProtective Materials.1.2 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:2D996 Terminology of Packaging and Distribution Environ-ments2.2 EIA Standard:EIA-541 Packaging Material Standards for ESD,SensitiveItems33.Terminologyantistatic agent,na chemical compound which,when im-pregnated or formulated into or topically applied to aprimary material or substrate,gives the primary materialantistatic properties.See antistatic property.antistatic property,nthe prevention of triboelectric chargegeneration by effectively minimizing the production of astatic charge when materials are separated from anothersurface.DISCUSSIONThe forword of EIA-541 states,“Antistatic no longerrefers to a resistivity range.Antistatic refers to a materials ability toresist triboelectric charge generation.A materials antistatic propensitydepends upon the nature of the material itself and the material withwhich it is in contact along with the means of surface separation.Theantistatic property is not a dependent function of material resistivity.Material resistivity is an intrinsic property used to define its degree ofconductivity without regard to other materials.”conductor,na substance or body that allows a flow ofelectric current to pass continuously along it or through itwhen a sufficient voltage is applied across any two points.dielectric breakdown,na threshold effect in a dielectricmedium where,at some electric field strength across themedium,bound electrons become unbound and travelthrough the medium as a current.In solid media,the regionof the current path is permanently damaged.The unit ofmeasurement is usually volts per unit of thickness.electrically continuous surface,na surface that is electri-cally conductive in that current can be passed at an appliedvoltage between any two points of its physical surface.electrical overstress(EOS),noverstress which may be dueto ESD or the operation of items beyond their electricalspecifications.electromagnetic shield,na screen or other housing placedaround a device or circuit to reduce the effects on them fromboth electric and magnetic fields.electrostatic discharge,nthe transfer of electrostatic chargebetween bodies at different electrostatic potentials.electrostatic discharge(ESD)protective,na property ofmaterials capable of one or more of the following:preventing the generation of static electricity.dissipating electrostatic changes over its surface or volume.providing shielding from ESD or electrostatic fields.electrostatic discharge sensitive(ESDS),na property ofitems in which they are inherently sensitive(ESDS)suscep-tible to either catastrophic failure or latent damage whenexposed to sources of ESD.Items are often categorized as totheir levels of sensitivity but in all cases require some meansof ESD protective packaging and handling.electrostatic shield,na barrier or enclosure that prevents thepenetration of an electrostatic field.DISCUSSIONAn electrostatic shield may not offer much protectionagainst the effects of an electromagnetic field.Electromagnetic shields,however,are good electrostatic shields.1This terminology is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.11 on Terminology(definitions).Current edition approved Oct.1,2021.Published November 2021.Originallyapproved in 1990.Last previous edition approved in 2015 as D5077 90(2015).DOI:10.1520/D5077-90R21.2For 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 the Electronic Industries Association,2001 Eye St.,N.W.,Washington,DC 20006.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 Org