NEN EN ISO 7490:2001被替代
Dental Gypsum-bonded Casting Investments
出版：Nederlands Normalisatie Instituut
專家解讀視頻
Specifies requirements for, and establishes a classification of, gypsum-bonded casting investments together with the test methods to be used to determine compliance with these requirements. Applies to gypsum-bonded investments suitable for casting dental gold alloy which have liquid temperatures not greater than 1080 Degrees C. Coverage includes: sampling, packaging and marking. Also includes annexes, tables and diagrams.
Supersedes NEN ISO 7490. (05/2003)
ISO 7490:2000 - Identical
SS EN ISO 7490 Ed. 1 (2001) - Identical
SN EN ISO 7490:2001 - Identical
UNI EN ISO 7490:2001 - Identical
I.S. EN ISO 7490:2001 - Identical
NS EN ISO 7490 Ed. 1 (2000) - Identical
UNE EN ISO 7490:2001 - Identical
BS EN ISO 7490:2001 - Identical
DIN EN ISO 7490 (2001-09) - Identical
ONORM EN ISO 7490:2001 - Identical
NBN EN ISO 7490:2001 - Identical
NF EN ISO 7490:2001 - Identical
