BS 7225-2.1:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Classification of refractories. Unshaped refractory products Alumina, silica and alumino-silicate products
Hardcopy , PDF
31-07-2007
English
28-02-1990
Committees responsible
Foreword
Classification
1. Scope
2. Definitions
3. Classification
4. Product type
5. Classification temperature
6. Chemical composition
7. Bulk density
8. Strength
9. Designations
Appendix
A. Coding system
Tables
1. Upper and lower limits for permanent linear change
in dimensions on heating
2. Classification by alumina content
3. Classification by iron oxide content
4. Classification of insulating castables by bulk
density
5. Classification of dense castables by strength
6. Classification of insulating castables by strength
7. Summary of coding used in classification
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