BS 6068-5.21(1996) : 1996 AMD 10321
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
WATER QUALITY - BIOLOGICAL METHODS - EVALUATION OF THE 'ULTIMATE' ANAEROBIC BIODEGRADABILITY OF ORGANIC COMPOUNDS IN DIGESTED SLUDGE - METHOD BY MEASUREMENT OF THE BIOGAS PRODUCTION
15-01-1999
23-11-2012
Committees responsible
National foreword
Method
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Test environment
6 Reagents
7 Apparatus
8 Procedure
9 Calculation and expression of results
10 Validity of results
11 Test report
Annexes
A (informative) Example of an apparatus to measure biogas
production by gas pressure
B (informative) Example of a degradation curve (cumulative
net pressure increase)
C (informative) Example of data sheets for the anaerobic
biodegradation test
D (informative) Bibliography
Gives a screening method for evaluation of biodegradability of organic compounds at a given concentration by anaerobic microorganisms.Test conditions do not necessarily correspond to optimal conditions which allow the maximum value of biodegradation to occur as the dilute sludge used has a relatively high concentration of test chemical. Applies to organic compounds with known carbon content which are soluble in water, poorly soluble in water, provided a method of exact dosing applies and does not inhibit test microorganisms at the chosen concentration. Special arrangements are necessary for volatile substances. BS AMD 10321 RENUMBERS STD
| Committee |
EH/3/5
|
| DevelopmentNote |
Renumbered and superseded by BS EN ISO 11734. Supersedes 94/502110 DC. (11/2005)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 11734:1995 | Identical |
| ISO 11923:1997 | Water quality — Determination of suspended solids by filtration through glass-fibre filters |
| ISO 10634:1995 | Water quality Guidance for the preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium |
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