Cross References:
BS 350
BS 1981
A 100
2A 173
S 102
S 105
S 147
S 148
S 149
Partially replaced by BS A 273:1978.
Incorporates the following:
AMD 2124 published 29 October 1976
PD 4653 published 11 October 1962
PD 5313 published 12 August 1964
PD 6163 published 15 May 1967