ASTM_C_286_-_99_2017.pdf

Designation:C28699(Reapproved 2017)Standard Terminology Relating toPorcelain Enamel and Ceramic-Metal Systems1This standard is issued under the fixed designation C286;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These definitions pertain to the terminology used in theporcelain enamel and ceramic-coated metal industries.1.2 Words adequately defined in standard dictionaries arenot included.Included are words that are peculiar to theseindustries.1.3 Hyphenated words,double words,or phrases are listedalphabetically under the first word;additional important wordsare cross-referenced.1.4 When a word or phrase,listed as a synonym,is notseparately defined,the defined word or phrase is the acceptedor preferred form.1.5 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:2A424 Specification for Steel,Sheet,for Porcelain EnamelingA919 Terminology Relating to Heat Treatment of Metals(Withdrawn 1999)3C282 Test Method for Acid Resistance of Porcelain Enam-els(Citric Acid Spot Test)C283 Test Methods for Resistance of Porcelain EnameledUtensils to Boiling AcidC285 Test Methods for Sieve Analysis of Wet-Milled andDry-Milled Porcelain EnamelC313 Method of Test for Adherence of Porcelain Enameland Ceramic Coatings to Sheet Metal(Withdrawn 1989)3C314 Test Method for Flatness of Porcelain Enameled Pan-els(Withdrawn 1979)3C346 Test Method for 45-deg Specular Gloss of CeramicMaterialsC347 Test Method for Reflectivity and Coefficient of Scatterof White Porcelain Enamels(Withdrawn 1990)3C374 Test Methods for Fusion Flow of Porcelain EnamelFrits(Flow-Button Methods)C448 Test Methods for Abrasion Resistance of PorcelainEnamelsC614 Test Method for Alkali Resistance of Porcelain Enam-elsC633 Test Method for Adhesion or Cohesion Strength ofThermal Spray CoatingsC743 Test Method for Continuity of Porcelain EnamelCoatingsC756 Test Method for Cleanability of Surface Finishes3.Terminologyabrasion resistancethe degree to which a porcelain enamelwill resist attack by abrasive materials.NOTE1See Test Methods C448.acid annealingan annealing process in which ferrous metalshapes are coated with acid before and in conjunction withthe annealing.acid resistancethe degree to which a porcelain enamel willresist attack by acids.NOTE2See Test Method C283 and Test Method C282.adherence(1)the degree of adhesion of a porcelain enamelor other ceramic coating to a metal substrate.NOTE3See Test Method C313.(2)Stress necessary to cause separation of one material fromanother at their interface.NOTE4See Test Method C633.agingthe storing of porcelain enamel slips or powders beforeuse.The change occurring in slips or powders with the lapseof time.1This terminology is under the jurisdiction of ASTM Committee B08 onMetallic and Inorganic Coatings and is the direct responsibility of SubcommitteeB08.12 on Materials for Porcelain Enamel and Ceramic-Metal Systems.Current edition approved May 1,2017.Published May 2017.Originallyapproved in 1951.Last previous edition approved in 2009 as C28699(2017).DOI:10.1520/C0286-99R17.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.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 Organization Technical Barriers to Trade(TBT)Committee.1 air atomizingair used to atomize powder and to controlpowder/air mix and powder cloud density.air fluidizerair used to impart fluid-like properties to pow-der via a fluid bed.alkali resistancefor porcelain enamels,the degree to whicha porcelain enamel will resist attack by aqueous alkalinesolutions.NOTE5See Test Method C614.alligator hidea defect characterized by an extreme rough-ness of the porcelain enamel surface:a severe case of orangepeel.aluminum enamela porcelain enamel specifically designedfor application to aluminum.annealingsee Terminology A919.annealing acidsee acid annealing an