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WITHDRAWN
SSH EN 21563:1991
95.99
Withdrawal of Standard
23 pri 2014
WITHDRAWN
SSH EN ISO 21563:2013