BS 3921:1985
Current
The latest, up-to-date edition.
Specification for clay bricks
Hardcopy , PDF
English
29-11-1985
Foreword
Committees responsible
Specification
0. Introduction
1. Scope
2. Definitions
3. Sizes
4. Dimensional deviations
5. Durability
6. Efflorescence
7. Compressive strength
8. Water absorption
9. Sampling
10. Marking
Appendices
A. Measurement of dimensions
B. Determination of soluble salt content
C. Deleted
D. Determination of compressive strength
E. Determination of water absorption
F. Appearance
G. Check-list for ordering bricks
H. Determination of initial rate of suction
J. Recommendations for quality control
Tables
1. Sizes
2. Limits of size
3. Durability of bricks by compressive strength and
water absorption
4. Classification of bricks by compressive strength
and water absorption
5. Number of bricks required for testing
6. Limits for the dimensions measured when using the
gauge board
Figures
1. Arrangement of bricks for the measurement of
2. Deleted
3. Example of control charts for the quality control
scheme for compressive strength
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