UNE EN 27490:1993被替代
Dental Gypsum-bonded Casting Investments For Gold Alloys
出版：Asociacion Espanola de Normalizacion
專家解讀視頻
Specifies requirements for, and a classification of, gypsum-bonded casting investments together with 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 more than 1080 Degrees C. Coverage includes: classification, sampling, packaging and marking. Also includes annexes, tables and diagrams.
NF EN 27490:1992 - Identical
ONORM EN 27490:1992 - Identical
DIN EN 27490 (1991-11) - Identical
BS EN 27490:1992 - Identical
I.S. EN 27490:1992 - Identical
UNI EN 27490:1992 - Identical
ISO 7490:2000 - Identical
SS EN 27 490:1992 - Identical
