EN 27490 : 1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
DENTAL GYPSUM-BONDED CASTING INVESTMENTS FOR GOLD ALLOYS
12-01-2013
01-12-2000
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 - Apparatus for measuring setting expansion
B - Apparatus for measuring thermal expansion
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.
| Committee |
TC 55
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| NEN ISO 7490 : 1992 | Identical |
| BS EN 27490:1992 | Identical |
| I.S. EN 27490:1992 | Identical |
| NF EN 27490 : 1992 | Identical |
| DIN EN 27490:1991-11 | Identical |
| ISO 7490:2000 | Identical |
| NBN EN 27490 : 1992 | Identical |
| UNE-EN 27490:1993 | Identical |
| ISO 3310-1:2016 | Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth |
| ISO 1562:2004 | Dentistry — Casting gold alloys |
| ISO 1561:1995 | Dental casting wax |
| ISO 7500-1:2015 | Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Calibration and verification of the force-measuring system |