LST EN ISO 15721:2002 Metallic coatings - Porosity tests - Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour (ISO 15721:2001)
2002LST EN ISO 15721:2002 Metallic coatings - Porosity tests - Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour (ISO 15721:2001)