NEN EN 1899-1 : 1998
Current
The latest, up-to-date edition.
WATER QUALITY - DETERMINATION OF BIOCHEMICAL OXYGEN DEMAND AFTER N DAYS (BODN) - PART 1: DILUTION AND SEEDING METHOD WITH ALLYLTHIOUREA ADDITION
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Definition
4 Principle
5 Reagents
6 Apparatus
7 Storage of the sample
8 Procedure
9 Calculation and expression of results
10 Trueness and precision
11 Special cases
12 Test report
Annex A (normative) Alternative incubation periods
Annex B (informative) Multitesting
Defines a determination of the biochemical oxygen demand of waters by diluting and seeding with suppression of nitrification. Applies to all waters with biochemical oxygen demands in excess of or equal to the limit of determination 3 mg/l of oxygen and not in excess of 6000mg/l of oxygen.
| DevelopmentNote |
Supersedes NEN 6634. (10/2002)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| BS EN 1899-1:1998 | Identical |
| EN 1899-1:1998 | Identical |
| SN EN 1899-1 : 1998 | Identical |
| UNI EN 1899-1 : 2001 | Identical |
| NF EN 1899-1 : 1998 | Identical |
| UNE-EN 1899-1:1998 | Identical |
| I.S. EN 1899-1:1998 | Identical |
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