This International Standard gives the classification of, and specifies requirements for, dental casting gold alloys with at least 60 % mass fraction of gold and at least 75 % mass fraction of gold plus specified platinum group metals (platinum, palladium, iridium, ruthenium and rhodium). Test methods are given for providing information on corrosion resistance, tarnish resistance and electrochemical behaviour.
This International Standard is applicable to casting alloys suitable for the fabrication of dental restorations and appliances without ceramic veneer.