BS 5612:1978
Current
The latest, up-to-date edition.
Specification for dental porcelains for jacket crowns
Hardcopy , PDF
English
31-10-1978
Foreword
Cooperating organizations
Specification
1. Scope
2. References
3. Definitions
4. Classification
5. Requirements
6. Sampling
7. Inspection
8. Test methods
9. Marking and packing
Appendix
A. Examples of the method of calculation and expression
of results for the test procedures described in 8.9,
8.10 and 8.11
Tables
1. Physical requirements for porcelain specimens
2. Example results after preliminary firing and
grinding
3. Example of results after refiring and regrinding
(cycle 1)
4. Example of results after refiring and regrinding
(cycle 2)
5. Example of results after refiring and regrinding
(cycle 3)
Figures
1. Mould vibrator assembly
2. Mould 25 mm x 6 mm x 3 mm for use in the preparation
of specimens for determination of firing shrinkage
and flexural strength and thermal expansion test
3. Mould phi 16 mm x 1.6 mm for the preparation of
specimens for use in fired porosity and chemical
solubility tests
4. Mould phi 6.0 mm x 4.0 mm for use in pyroplasticity
test
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