Establishment of the classification of and specification of the requirements for impression materials in powder form containing an alginate as the gel-forming ingredient. This standard replaces ISO/R 1563/1970 of which it constitutes a technical revision. The figures show the different test apparatus, instruments and components.
WITHDRAWN
EN 21563:1991
99.60
Withdrawal effective
Aug 21, 2013
WITHDRAWN
EN ISO 21563:2013