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BS 1438:1971

Specification for media for biological percolating filters

Standard Details

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 surface and group classification; flakiness, cleanness, sampling and testing; supplier's certificate; independent tests. Notes on use appended.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: BS 1438:1971
Document Year: 1971
Pages: 32
  • Section Volume:
  • GBM06 Environment & Waste (GMB06)

Life Cycle

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WITHDRAWN
BS 1438:1971

WITHDRAWN
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