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Homepage>BS Standards>13 ENVIRONMENT. HEALTH PROTECTION. SAFETY>13.060 Water quality>13.060.30 Sewage water>BS 1438:2004 Aggregates. Single-sized aggregates for use as a medium in biological percolating filters
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immediate downloadReleased: 2004-03-05
BS 1438:2004 Aggregates. Single-sized aggregates for use as a medium in biological percolating filters

BS 1438:2004

Aggregates. Single-sized aggregates for use as a medium in biological percolating filters

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Standard number:BS 1438:2004
Pages:12
Released:2004-03-05
ISBN:0 580 43446 X
Status:Standard
DESCRIPTION

BS 1438:2004


This standard BS 1438:2004 Aggregates. Single-sized aggregates for use as a medium in biological percolating filters is classified in these ICS categories:
  • 13.060.30 Sewage water
  • 91.100.25 Terracotta building products

This British Standard specifies the properties of single-sized aggregates for use as a medium in biological percolating filters.

NOTE Suitable aggregates include crushed natural aggregate, metallurgical slags, selected bottom ashes, sintered pulverized fuel ash and other similar materials.