BS EN ISO 14647:2016 - Metallic coatings. Determination of porosity in gold coatings on metal substrates. Nitric acid vapour test

BS EN ISO 14647:2016

Metallic coatings. Determination of porosity in gold coatings on metal substrates. Nitric acid vapour test

Status : Current   Published : May 2000

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This International Standard specifies equipment and a method for using nitric acid vapour to determine porosity in gold coatings, particularly electrodeposits and clad metals used on electrical contacts. This method is designed to show whether the porosity level is less than or greater than some value that, by experience, is considered by the user to be acceptable for the intended application. It is suitable for inlays or claddings containing 75 % or more of gold, for electrodeposits containing 95 % or more of gold or for substrates of copper, nickel and their alloys that are commonly used in electrical contacts. The nitric acid vapour test is too severe to be used for gold coatings less than 0,6 ?m thick. It is also not suitable for coatings that are less noble than gold or platinum, such as palladium and its alloys, or gold-flashed palladium and its alloys. Several other porosity testing methods are described in ISO 10308 and in the literature (see e.g. Bibliography, [1] and [2]).




Standard NumberBS EN ISO 14647:2016
TitleMetallic coatings. Determination of porosity in gold coatings on metal substrates. Nitric acid vapour test
StatusCurrent
Publication Date15 May 2000
Normative References(Required to achieve compliance to this standard)ISO 2064, ISO 2079, ISO 2080, ISO 10308
Informative References(Provided for Information)No other standards are informatively referenced
International RelationshipsEN ISO 14647:2016,ISO 14647:2000
Amended ByCorrigendum, May 2016.
Draft Superseded By98/122705 DC
DescriptorsMetal coatings, Decorative coatings, Gold, Thickness, Porosity measurement, Porosity, Electrodeposition, Nitric acid, Chemical analysis and testing, Test equipment, Coatings
ICS25.220.40
Title in FrenchRevêtements métalliques. Détermination de la porosité des revêtements d'or sur les substrats de métal. Essai à la vapeur d'acide nitrique
Title in GermanMetallische Überzüge. Bestimmung der Porosität in Goldbeschichtungen auf Metallsubstraten. Salpetersäure-Dampftest
CommitteeSTI/33
ISBN978 0 580 90539 1
PublisherBSI
FormatA4
DeliveryYes
Pages18
File Size431 KB
Price£130.00


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