NF EN ISO 7827

NF EN ISO 7827

February 1996
Standard Cancelled

"Water quality. Evaluation in an aqueous medium of the ""ultimate"" aerobic biodegradability of organic compounds. Method by analysis of dissolved organic carbon (doc)."

Main informations

Collections

National standards and national normative documents

Publication date

February 1996

Number of pages

12 p.

Reference

NF EN ISO 7827

ICS Codes

13.020.40   Pollution, pollution control and conservation
13.060.70   Examination of biological properties of water

Classification index

T90-312

Print number

1 - 01/02/1996

International kinship

ISO 7827:1994

European kinship

EN ISO 7827:1995
Replaced standards (1)
NF T90-312
November 1985
Standard Cancelled
Testing waters. Evaluation in AN aqueous medium of the "ultimate" aerobic biodegradability of soluble organic compounds. Method by analysis of dissolved organic carbon (DOC).

La présente norme française s'adresse aux laboratoires réalisant des essais écotoxicologiques dans le but d'évaluer les risques des produits chimiques pour l'homme et son environnement. Elle est en particulier applicable pour la mise en oeuvre des essais de dégradation biotique des produits chimiques prévus dans les dossiers de notification de mise sur le marché d'une nouvelle substance. Dans ce contexte, elle a été élaborée en tenant compte des protocoles d'essais recommandés par l'OCDE (lignes directrices de l'OCDE pour les essais des produits chimiques - Méthode 301 E) et par la CEE (Directive 84/449/CEE - Méthode C 3).

Standard replaced by (1)
NF EN ISO 7827
March 2013
Standard Current
Water quality - Evaluation of the "ready", "ultimate" aerobic biodegradability of organic compounds in an aqueous medium - Method by analysis of dissolved organic carbon (DOC)

ISO 7827:2010 specifies a method for the evaluation of the “ready” and “ultimate” biodegradability of organic compounds at a given range of concentrations by aerobic microorganisms. In this context, ISO 7827:2010 also gives specific definitions for the terms “ready” and “ultimate”. The method applies to organic compounds which are: a) soluble at the concentration used under the conditions of the test [dissolved organic carbon (DOC) concentrations of 10 mg/l to 40 mg/l]; b) non‑volatile or having a negligible vapour pressure under the conditions of the test; c) not significantly adsorbable on glass and activated sludge; d) not inhibitory to the test microorganisms at the concentration chosen for the test. The method is not suitable for waste waters, as they usually contain significant amounts of water‑insoluble organic carbon, which is not included in DOC measurements.

ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
New: UPSELL service
- The UPSELL service allows you to easily update one of your standards.
- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ