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BS 1438:1971 | 7 Sep 1971 | BSI Knowledge
Standard
Withdrawn
BS 1438:1971
Specification for media for biological percolating filters
Published:
7 Sep 1971
•
Withdrawn:
5 Mar 2004
Overview
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References
History
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Product Details
Descriptors
Water treatment
Biological filters
Sampling methods
Filters
Trade effluents
Sieving
Surface texture
Samples
Stone
Quality
Contamination
Durability
Sewage treatment
Thickness measurement
Slags
Coke
Mechanical separation
Clinker
Gauges
Materials handling
Flakes
Shape
Chemical-resistance tests
Gravel
Reports
Size classification
ICS Codes
13.060.30 Sewage water
Committee
B/502
International relationships
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ISBN
0 580 06784 X
Publisher
BSI