TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
DQO [2 records]
Record 1 - internal organization data 2015-09-16
Record 1, English
Record 1, Subject field(s)
- Environmental Studies and Analyses
- Water Pollution
- Analytical Chemistry
Record 1, Main entry term, English
- chemical oxygen demand
1, record 1, English, chemical%20oxygen%20demand
correct, standardized
Record 1, Abbreviations, English
- COD 1, record 1, English, COD
correct, standardized
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The mass concentration of oxygen equivalent to the amount of dichromate consumed by dissolved and suspended matter when a water sample is treated with that oxidant under defined conditions. 2, record 1, English, - chemical%20oxygen%20demand
Record number: 1, Textual support number: 1 OBS
The weight of oxygen taken up by the total amount of organic matter in a sample of water without distinguishing between biodegradable and non-biodegradable organic matter. The result is expressed as the number of parts per million (or milligrams per litre, or grams per cubic metre) of oxygen taken up from a solution of boiling potassium dichromate in two hours. The test has been used for assessing the strength of sewage and trade wastes. 3, record 1, English, - chemical%20oxygen%20demand
Record number: 1, Textual support number: 2 OBS
chemical oxygen demand; COD: term, abbreviation and definition standardized by ISO. 4, record 1, English, - chemical%20oxygen%20demand
Record 1, French
Record 1, Domaine(s)
- Études et analyses environnementales
- Pollution de l'eau
- Chimie analytique
Record 1, Main entry term, French
- demande chimique en oxygène
1, record 1, French, demande%20chimique%20en%20oxyg%C3%A8ne
correct, feminine noun, standardized
Record 1, Abbreviations, French
- DCO 2, record 1, French, DCO
correct, feminine noun, standardized
- D.C.O. 3, record 1, French, D%2EC%2EO%2E
correct, feminine noun
Record 1, Synonyms, French
- demande chimique d'oxygène 4, record 1, French, demande%20chimique%20d%27oxyg%C3%A8ne
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Concentration en masse d'oxygène équivalente à la quantité de dichromate consommée par les matières dissoutes et en suspension lorsqu'on traite un échantillon d'eau avec cet oxydant dans des conditions définies. 5, record 1, French, - demande%20chimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 1 OBS
Paramètre utilisé pour caractériser la pollution organique de l'eau, qui se mesure à partir de la quantité d'oxygène dissous nécessaire à la dégradation chimique des polluants organiques qu'elle contient. 6, record 1, French, - demande%20chimique%20en%20oxyg%C3%A8ne
Record number: 1, Textual support number: 2 OBS
demande chimique en oxygène; DCO : terme, abréviation et définition normalisés par l'ISO. 7, record 1, French, - demande%20chimique%20en%20oxyg%C3%A8ne
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Estudios y análisis del medio ambiente
- Contaminación del agua
- Química analítica
Record 1, Main entry term, Spanish
- demanda química de oxígeno
1, record 1, Spanish, demanda%20qu%C3%ADmica%20de%20ox%C3%ADgeno
correct, feminine noun
Record 1, Abbreviations, Spanish
- DQO 2, record 1, Spanish, DQO
correct, feminine noun
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Concentración en masa del oxígeno equivalente a la cantidad de dicromato consumido por las materias disueltas y en suspensión, cuando una muestra de agua se trata por dicho oxidante en condiciones definidas. 3, record 1, Spanish, - demanda%20qu%C3%ADmica%20de%20ox%C3%ADgeno
Record 2 - internal organization data 2015-02-23
Record 2, English
Record 2, Subject field(s)
- Scientific Measurements and Analyses
- Environmental Studies and Analyses
- Soil Science
Record 2, Main entry term, English
- data quality objective
1, record 2, English, data%20quality%20objective
correct, see observation, standardized
Record 2, Abbreviations, English
- DQO 2, record 2, English, DQO
correct
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
data quality objectives: A statement of the required detection limits, accuracy, reproducibility and repeatability of the analytical and other required data. 1, record 2, English, - data%20quality%20objective
Record number: 2, Textual support number: 1 OBS
Generic data quality objectives may sometimes be set at national levels. Data quality objectives may also include the amount of data required for an area of land (or part of a site), to enable sound comparisons to be made with generic guidelines or standards, and even site-specific or material-specific risk estimation. 1, record 2, English, - data%20quality%20objective
Record number: 2, Textual support number: 2 OBS
data quality objective: The plural form of this term (data quality objectives) and the definition have been standardized by the International Organization for Standardization (ISO). 3, record 2, English, - data%20quality%20objective
Record 2, Key term(s)
- data quality objectives
Record 2, French
Record 2, Domaine(s)
- Mesures et analyse (Sciences)
- Études et analyses environnementales
- Science du sol
Record 2, Main entry term, French
- objectif de qualité des données
1, record 2, French, objectif%20de%20qualit%C3%A9%20des%20donn%C3%A9es
correct, see observation, masculine noun, standardized
Record 2, Abbreviations, French
- OQD 2, record 2, French, OQD
correct, masculine noun
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
objectifs de qualité des données : Indication des exigences concernant les limites de détection, de précision, de reproductibilité et de répétabilité pour les données analytiques et autres données exigées. 1, record 2, French, - objectif%20de%20qualit%C3%A9%20des%20donn%C3%A9es
Record number: 2, Textual support number: 1 OBS
Des objectifs de qualité de données peuvent parfois être fixés de façon générique au niveau national. Ces objectifs peuvent également englober la quantité de données requises pour une partie de terrain (ou une partie d'un site) afin de permettre une comparaison documentée avec les directives ou les normes génériques, voire une estimation du risque spécifique à un site ou à un matériau. 1, record 2, French, - objectif%20de%20qualit%C3%A9%20des%20donn%C3%A9es
Record 2, Key term(s)
- objectifs de qualité des données
Record 2, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: