Skip to main content
Back

EVS-EN ISO 5815-1:2019

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

General information

Valid from 16.12.2019
Base Documents
ISO 5815-1:2019; EN ISO 5815-1:2019
Directives or regulations
None

Standard history

Status
Date
Type
Name
16.12.2019
Main
01.01.2000
Main
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.

Required fields are indicated with *

*
*
*
PDF
24.40 € incl tax
PDF redline
31.72 € incl tax
Paper
24.40 € incl tax
Browse standard from 2.44 € incl tax
Standard monitoring

Customers who bought this item also bought

Main

EVS-EN 61000-2-9:2002

Electromagnetic compatibility (EMC) - Part 2: Environment - Section 9:Description of HEMP environment - Radiated disturbance - Basic EMC publication
Newest version Valid from 01.01.2003
Main

ISO 11923:1997

Water quality -- Determination of suspended solids by filtration through glass-fibre filters
Newest version Valid from 22.01.1997
Main

EVS-EN IEC 61000-4-3:2020

Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3:2020)
Newest version Valid from 31.12.2020
Main

EVS-EN IEC 61000-6-3:2021

Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for equipment in residential environments
Newest version Valid from 15.04.2021