UNI EN 27490 : 1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
DENTAL GYPSUM-BONDED CASTING INVESTMENTS FOR GOLD ALLOYS
30-04-2001
12-01-2013
Cooperating organizations
National foreword
Foreword
1. Scope
2. Normative references
3. Classification
4. Requirements
5. Sampling
6. Test conditions and preparation of test specimens
7. Test methods
8. Information to be supplied by manufacturer
9. Packaging
10. Marking
Annexes
A. (informative) Apparatus for measuring setting
expansion
B. (informative) Apparatus for measuring thermal
expansion
Tables
1. Compressive strength
2. Total expansion
Figures
1. Slump test apparatus in brass or stainless steel
2. Vicat test specimen holder
3. Arrangement of mesio-occluso-distal inlay pattern
and liner in casting ring
A.1 Setting expansion apparatus fitted with linear
transducer
A.2 Specimen container for measuring setting expansion
A.3 Detail illustrating how to apply controlled measuring
force
B.1 Thermal expansion apparatus
National annexes
NA. (informative) Committees responsible
NB. (informative) Cross-references
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