• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

ISO 5815-2:2003

Current
Current

The latest, up-to-date edition.

Water quality — Determination of biochemical oxygen demand after n days (BODn) — Part 2: Method for undiluted samples
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

31-03-2003

ISO 5815-2:2003 specifies determination of the biochemical oxygen demand of waters of undiluted samples. It is applicable to all waters having biochemical oxygen demands greater than or equal to 0,5 mg/l of oxygen (the limit of determination) and not exceeding 6 mg/l of oxygen.

The results obtained are the product of a combination of biochemical and chemical reactions. They do not have the rigorous and unambiguous character of those resulting from, for example, a single, well-defined, chemical process. Nevertheless, they provide an indication from which the quality of waters can be estimated.

The test can be influenced by the presence of various substances. Those which are toxic to microorganisms, for example bactericides, toxic metals or free chlorine, inhibit biochemical oxidation. The presence of algae or nitrifying microorganisms can produce artificially high results. In these situations a modification of the method may be necessary.

Annex A describes alternative incubation periods.

Annex B describes procedures for modification of the method by addition of seeding material, salts, inhibition of nitrification by allylthiourea (ATU) addition, neutralization, homogenization and/or filtration. These modifications may be found necessary for specific evaluations of the water quality of receiving waters.

Annex C provides precision data.

Committee
ISO/TC 147/SC 2
DevelopmentNote
Supersedes ISO/DIS 5815-2 Together with ISO 5815-1, supersedes ISO 5815. (04/2003)
DocumentType
Standard
Pages
13
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
EN 1899-2 : 1998 Identical
DIN EN 1899-2 E : 1998 Identical
DIN EN 1899-2:1998-05 Identical

I.S. EN 62282-3-201:2017 FUEL CELL TECHNOLOGIES - PART 3-201: STATIONARY FUEL CELL POWER SYSTEMS - PERFORMANCE TEST METHODS FOR SMALL FUEL CELL POWER SYSTEMS
BS EN 62282-3-200:2016 Fuel cell technologies Stationary fuel cell power systems. Performance test methods
I.S. EN 62282-3-200:2016 FUEL CELL TECHNOLOGIES - PART 3-200: STATIONARY FUEL CELL POWER SYSTEMS - PERFORMANCE TEST METHODS
CEN ISO/TR 15462:2009 Water quality - Selection of tests for biodegradability (ISO/TR 15462:2006)
EN 62282-3-200:2016 Fuel cell technologies - Part 3-200: Stationary fuel cell power systems - Performance test methods
16/30314766 DC : 0 BS EN 62282-3-201 ED2.0 - FUEL CELL TECHNOLOGIES - PART 3-201: STATIONARY FUEL CELL POWER SYSTEMS - PERFORMANCE TEST METHODS FOR SMALL FUEL CELL POWER SYSTEMS
PD CEN ISO/TR 15462:2009 Water quality. Selection of tests for biodegradability
BS EN 62282-3-201:2017 Fuel cell technologies Stationary fuel cell power systems. Performance test methods for small fuel cell power systems
IEC 62282-3-201:2017 Fuel cell technologies - Part 3-201: Stationary fuel cell power systems - Performance test methods for small fuel cell power systems
IEC 62282-3-200:2015 Fuel cell technologies - Part 3-200: Stationary fuel cell power systems - Performance test methods
S.R. CEN ISO/TR 15462:2009 WATER QUALITY - SELECTION OF TESTS FOR BIODEGRADABILITY
ISO/TR 15462:2006 Water quality Selection of tests for biodegradability
EN 62282-3-201:2017 Fuel cell technologies - Part 3-201: Stationary fuel cell power systems - Performance test methods for small fuel cell power systems

ISO 5813:1983 Water quality — Determination of dissolved oxygen — Iodometric method
ISO 9408:1999 Water quality — Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium by determination of oxygen demand in a closed respirometer
ISO 5814:2012 Water quality — Determination of dissolved oxygen — Electrochemical probe method
ISO 6107-2:1997 Water quality — Vocabulary — Part 2:
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 7393-2:1985 Water quality Determination of free chlorine and total chlorine Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes

View more information
£88.00
Excluding VAT

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.