ASTM_D_3636_-_19.pdf

Designation:D363619Standard Practice forSampling and Judging Quality of Solid Electrical InsulatingMaterials1This standard is issued under the fixed designation D3636;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.Scope*1.1 This practice covers procedures for obtaining datapertaining to the quality of a lot of electrical insulating materialand for making a judgement whether the lot meets therequirements of a material specification.1.2 This practice is not intended to define a producersinternal quality control procedures but is designed to determinethe acceptability of all,or some portion,of a quantity ofelectrical insulating material that is available for inspection bythe user of the material.1.3 This practice is intended to be used in conjunction withan existing material specification that specifies property char-acteristic limits,acceptable quality level(AQL),standard testmethods,and specific sampling instructions.1.4 In the absence of a specification as described in 1.3,usethis practice as a guide,after establishment of agreed-uponproperty characteristics,limits,AQL,standard test methods,and specific sampling instructions.1.5 It is intended that this be a practice for inspection byattributes.1.6 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.1.7 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:2E300 Practice for Sampling Industrial Chemicals2.2 Military Standard:MIL-STD-105E Sampling Procedures and Tables for In-spection by Attributes3(last revised May 10,1989)ANSI/ASQ Z1.4,MIL-STD-1916 Department of DefensePreferred Methods forAcceptance of Product(last revisedApril 1,1996)2.3 Other Document:ANSI/ASQC A2-198743.Terminology3.1 Definitions:3.1.1 acceptance number,nthe maximum allowable num-ber of nonconformities for a given AQL and sample size(lot-sample size).3.1.2 acceptable quality level(AQL),nthe maximumpercent nonconforming which,for purposes of samplinginspection,is considered satisfactory as a process average.3.1.3 critical property,na quantitatively measurable char-acteristic which is absolutely necessary to be met if a materialor product is to provide satisfactory performance for theintended use.3.1.3.1 DiscussionIn some situations,specification re-quirements coincide with customer usage requirements.Inother situations,they may not coincide,being either more orless stringent.More stringent sampling(for example,smallerAQLvalues)is usually used for measurement of characteristicswhich are considered critical.The selection of sampling plansis independent of whether the term defect or nonconformity isappropriate.3.1.4 defect,na departure of a quality characteristic fromits intended level,or state,that occurs with a severity sufficient1This practice is under the jurisdiction of ASTM Committee D09 on Electricaland Electronic Insulating Materials and is the direct responsibility of SubcommitteeD09.94 on Editorial.Current edition approved April 1,2019.Published April 2019.Originallyapproved in 1977.Last previous edition approved in 2013 as D3636 13a1.DOI:10.1520/D3636-19.2For 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 U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.*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 to cause an associated product or service not to satisfy intendednormal,or reasonably foreseeable,usage requirements.3.1.4.1 DiscussionThe terms defect and nonconformityand their derivatives are used somewhat interch