UNE-EN ISO 15720:2002 Metallic coatings - Porosity tests - Porosity in gold or palladium coatings on metal substrates by gel-bulk electrography. (ISO 15720:2001)
2002UNE-EN ISO 15720:2002 Metallic coatings - Porosity tests - Porosity in gold or palladium coatings on metal substrates by gel-bulk electrography. (ISO 15720:2001)