Metallic coatings. Porosity tests. Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour Ingestion-build-73935 Testing houses for towed and

Testing houses for towed and towing vehicles

Senior management associated with these facilities

knowledge or skill

— identification

Metallic coatings. Porosity tests. Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour Ingestion-build-73935 Testing houses for towed and1 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