BSI - BS 1438
Aggregates - Single-sized aggregates for use as a medium in biological percolating filters
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Organization: | BSI |
Publication Date: | 5 March 2004 |
Status: | active |
Page Count: | 12 |
ICS Code (Sewage water): | 13.060.30 |
ICS Code (Terracotta building products): | 91.100.25 |
Document History

BS 1438
March 5, 2004
Aggregates - Single-sized aggregates for use as a medium in biological percolating filters
A description is not available for this item.

September 7, 1971
Specification for media for biological percolating filters
Single-sized materials, 63 mm to 14 mm, including coke, clinker, gravel, crushed stone, slag for treatment of water, sewage, trade effluents. Durability; sizes; descriptions of shape, nature of...