UNE-EN ISO 9888:1999
Current
The latest, up-to-date edition.
WATER QUALITY. EVALUATION OF ULTIMATE AEROBIC BIODEGRADABILITY OF ORGANIC COMPOUNDS IN AQUEOUS MEDIUM. STATIC TEST (ZAHN-WELLENS METHOD). (ISO 9888:1999).
Hardcopy , PDF
Spanish, Castilian, English
27-10-1999
1 Scope
2 Normative references
3 Terms and 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
Annex A (informative) Example of a biodegradation
curve
Bibliography
Defines a procedure for the evaluation in aqueous medium of the ultimate biodegradability and as information, the primary biodegradability and the total elimination from water, of organic compounds at a specified concentration by aerobic microorganisms. The procedure is applicable to organic compounds which are water-soluble at the concentration used under the test conditions and not expected to be transformed to insoluble metabolites if biodegradation; nonvolatile, or which have negligible vapour pressure under test conditions; not lost by foaming from the test solution and not inhibitory to the microorganisms at the concentration chosen for the test.
| Committee |
CTN 77/SC 1
|
| DevelopmentNote |
Supersedes UNE EN 29888. (07/2003)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| BS EN ISO 9888:1999 | Identical |
| NBN EN ISO 9888 : 1999 | Identical |
| NF EN ISO 9888 : 1999 | Identical |
| NEN EN ISO 9888 : 1999 | Identical |
| EN ISO 9888:1999 | Identical |
| NS EN ISO 9888 : 2ED 1999 | Identical |
| ISO 9888:1999 | Identical |
| I.S. EN ISO 9888:1999 | Identical |
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