This Tanzania Draft standard specifies requirements of the following concrete masonry building units which are used in the construction of load-bearing and partition walls
a) Hollow (open and closed cavity) load bearing concrete blocks,
b) Hollow (open and closed cavity) non-load bearing concrete blocks, and
c) Solid load-bearing concrete blocks and non-load bearing concrete blocks.
Tiles, flagstones, bricks and similar articles, of cement, concrete or artificial stone (excl. building blocks and bricks) (HS code(s): 681019); Concrete and concrete products (ICS code(s): 91.100.30)
