DS DS/EN ISO 7490
DS DSEN SO 7490 2001-FEB-21 Dental gypsum-bonded castng nvestments Replaced by DS DSEN SO 15912A1
DS DSEN SO 7490 2001-FEB-21 Dental gypsum-bonded castng nvestments Replaced by DS DSEN SO 15912A1
This standard establishes a classification of, and specifies requirements for, gypsum-bonded casting investments. It also specifies test methods to be used to determine compliance with these requirements.