NEN-EN 1899-1
Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition
| Organization: | NEN |
| Publication Date: | 1 September 1998 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Water quality in general): | 13.060.01 |
scope:
Specifies a determination of the biochemical oxygen demand of waters by dilution and seeding with suppression of nitrification. This standard is applicable to all waters having biochemical oxygen demands greater than or equal to the limit of determination 3 mg/l of oxygen and not exceeding 6000 mg/l of oxygen. For biochemical oxygen demands greater than 6000 mg of oxygen/l, the method is still applicable, but the errors caused by the necessary dilutions can infuence the analytic quality of the test method and the results are to be interpreted with circumspection.
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