Metallic coatings. Porosity tests. Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour Ingestion-build-73935 — identification

— identification

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ContentsSection 1: GeneralSection 2: Health and safety managementSection 3: Planning and servicesSection 4: Teaching areas

- Chlorides

Metallic coatings. Porosity tests. Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour Ingestion-build-73935 — identification1 Scope This test method covers equipment and methods for determining the porosity of gold or palladium coatings, particularly electrodeposits and clad metals used on electrical contacts. It is designed to show whether the porosity level is less than or greater than a given value which by experience is considered by the user to be acceptable for the intended application. This porosity test involves corrosion reactions in which the products delineate