NF EN 21559:1992被替代

Gives requirements and methods of test for alloys composed mainly of silver, tin and copper, complying with the composition requirements in either the powder or tablet form, for preparation of dental amalgam.

NF EN ISO 1559:2002

SS EN 21 559 Ed. 1 (1993) - Identical

UNI EN 21559:1993 - Identical

I.S. EN 21559:1992 - Identical

BS EN 21559:1992 - Identical

DIN EN 21559 (1992-03) - Identical

ONORM EN 21559:1992 - Identical