BS EN ISO 5815-1:2019 - Water quality. Determination of biochemical oxygen demand after n days (BODn). Dilution and seeding method with allylthiourea addition

BS EN ISO 5815-1:2019

Water quality. Determination of biochemical oxygen demand after n days (BODn). Dilution and seeding method with allylthiourea addition

Status : Current   Published : October 2019

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This document specifies the determination of the biochemical oxygen demand of waters by dilution and seeding with suppression of nitrification after 5 d or 7 d incubation time.

It is applicable to all waters having biochemical oxygen demands usually between 1 mg/l and 6 000 mg/l. It applies particularly to waste waters but also suits for the analysis of natural waters. For biochemical oxygen demands greater than 6 000 mg/l of oxygen, the method is still applicable, but special care is needed taking into consideration the representativeness of subsampling for preparation of the dilution steps. The results obtained are the product of a combination of biochemical and chemical reactions in presence of living matter which behaves only with occasional reproducibility. The results do not have the rigorous and unambiguous character of those resulting from, for example, a single, well‑defined, chemical process. Nevertheless, the results provide an indication from which the quality of waters can be estimated.




Standard NumberBS EN ISO 5815-1:2019
TitleWater quality. Determination of biochemical oxygen demand after n days (BODn). Dilution and seeding method with allylthiourea addition
StatusCurrent
Publication Date07 October 2019
Normative References(Required to achieve compliance to this standard)ISO 8245, ISO 15705, ISO 3696, ISO 8467, ISO 5667-3, ISO 5814, ISO 5813, ISO 6060, ISO 10523, ISO 17289
Informative References(Provided for Information)ISO 7393-1:1985, ISO 20079:2005, ISO 6107-2:2006, ISO 7393-2:2017
ReplacesBS EN 1899-1:1998, BS 6068-2.63:1998
International RelationshipsEN ISO 5815-1:2019,ISO 5815-1:2019
Amended ByCorrigendum, November 2019
DescriptorsBiological oxygen demand, Oxygen demand, Water, Specimen preparation, Water resources, Biological analysis and testing, Water testing, Chemical analysis and testing, Quality, Dilution, Test duration, Interferences (chemical), Testing conditions
ICS13.060.50
13.060.70
Title in FrenchQualité de l'eau. Détermination de la demande biochimique en oxygène après n jours (DBOn) Méthode par dilution et ensemencement avec apport d'allylthiourée
Title in GermanWasserbeschaffenheit. Bestimmung des biochemischen Sauerstoffbedarfs nach n Tagen (BSBn) Verdünnungs- und Impfverfahren mit Zugabe von Allylthioharnstoff
CommitteeEH/3/5
ISBN978 0 539 12152 0
PublisherBSI
FormatA4
DeliveryYes
Pages32
File Size1.66 MB
Price£182.00


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