BS 1438:1971 - Specification for media for biological percolating filters

BS 1438:1971

Specification for media for biological percolating filters

Status : Revised, Superseded, Withdrawn   Published : September 1971 Replaced By : BS 1438:2004

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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.




Standard NumberBS 1438:1971
TitleSpecification for media for biological percolating filters
StatusRevised, Superseded, Withdrawn
Publication Date07 September 1971
Confirm Date15 December 1983
Withdrawn Date05 March 2004
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS 1438:2004
Amended ByAMD 998
AMD 3454
Draft Superseded By69/34986 DC
DescriptorsBiological filters, Filters, Mechanical separation, Coke, Clinker, Gravel, Slags, Stone, Water treatment, Trade effluents, Sewage treatment, Durability, Sieving, Size classification, Shape, Surface texture, Flakes, Contamination, Sampling methods, Samples, Reports, Chemical-resistance tests, Materials handling, Gauges, Thickness measurement, Quality
ICS13.060.30
Title in FrenchMilieux pour filtres biologiques a ecoulement par gravite. Specification
Title in GermanMedien fuer biologische Tropffilter. Spezifikation
CommitteeB/502
ISBN0 580 06784 X
PublisherBSI
FormatA5
DeliveryNo
Pages32
File Size3.416 MB
Price£182.00


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