ASTM_B_734_-_97_2013.pdf

Designation:B73497(Reapproved 2013)Standard Specification forElectrodeposited Copper for Engineering Uses1This standard is issued under the fixed designation B734;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 This specification covers requirements for electrodepos-ited coatings of copper used for engineering purposes.Ex-amples include surface hardening,heat treatment stop-off,asan underplate for other engineering coatings,for electromag-netic interferences(EMI)shielding in electronic circuitry,andin certain joining operations.1.2 This specification is not intended for electrodepositedcopper when used as a decorative finish,or as an undercoat forother decorative finishes.1.3 This specification is not intended for electrodepositedcopper when used for electroforming.2.Referenced Documents2.1 ASTM Standards:2B320 Practice for Preparation of Iron Castings for Electro-platingB374 Terminology Relating to ElectroplatingB487 Test Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionB499 Test Method for Measurement of Coating Thicknessesby the Magnetic Method:Nonmagnetic Coatings onMagnetic Basis MetalsB504 Test Method for Measurement of Thickness of Metal-lic Coatings by the Coulometric MethodB507 Practice for Design of Articles to Be Electroplated onRacksB568 Test Method for Measurement of Coating Thicknessby X-Ray SpectrometryB571 Practice for Qualitative Adhesion Testing of MetallicCoatingsB588 Test Method for Measurement of Thickness of Trans-parent or Opaque Coatings by Double-Beam InterferenceMicroscope TechniqueB602 Test Method for Attribute Sampling of Metallic andInorganic CoatingsB678 Test Method for Solderability of Metallic-CoatedProductsB697 Guide for Selection of Sampling Plans for Inspectionof Electrodeposited Metallic and Inorganic CoatingsB762 Test Method of Variables Sampling of Metallic andInorganic CoatingsB765 Guide for Selection of Porosity and Gross Defect Testsfor Electrodeposits and Related Metallic CoatingsB832 Guide for Electroforming with Nickel and CopperB849 Specification for Pre-Treatments of Iron or Steel forReducing Risk of Hydrogen EmbrittlementB850 Guide for Post-Coating Treatments of Steel for Reduc-ing the Risk of Hydrogen EmbrittlementB851 Specification for Automated Controlled Shot Peeningof Metallic Articles Prior to Nickel,Autocatalytic Nickel,or Chromium Plating,or as Final FinishD3951 Practice for Commercial PackagingF519 Test Method for Mechanical Hydrogen EmbrittlementEvaluation of Plating/Coating Processes and Service En-vironments2.2 Military Standard:MIL-R-81841 Rotary Flap Peening of Metal Parts3MIL-S-13165 Shot Peening of Metal Parts3MIL-W-81840 Rotary Flap Peening Wheels33.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 significant surfacesthose surfaces normally visible(directly or by reflection)that are essential to the appearance orserviceability of the article when assembled in a normalposition;or which can be the source of corrosion products thatdeface visible surfaces on the assembled article.Whennecessary,the significant surface shall be indicated on thedrawing of the article,or by the provision of suitably markedsamples.NOTE1When significant surfaces are involved on which the specified1This specification is under the jurisdiction of ASTM Committee B08 onMetallic and Inorganic Coatings and is the direct responsibility of SubcommitteeB08.03 on Engineering Coatings.Current edition approved Dec.1,2013.Published December 2013.Originallyapproved in 1984.Last previous edition approved in 2008 as B734 97(2008).DOI:10.1520/B0734-97R13.2For 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 Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094.Attn:NPODS.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 thickness of coating cannot readily be controlled,such as threads,holes,deep recesses,and bases of angles,it will be necessary to apply thickercoatings on the more accessible surfaces,or to use special racking or both.3.1.2 inspection lota collection of coated articles that;areof the same type;have been produced to the same specifica-tions;have been coated by a single supplier at one time,or atapproximately the same time,under essentially identical con-ditions;and are submitted for acceptance or rejection as agroup.3.2 DefinitionsFor definitions of the technical terms usedin this specification see Terminology B374.4.Classification4.1 The electrodeposited c