TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
CT CONCEPT [1 record]
Record 1 - internal organization data 2026-03-03
Record 1, English
Record 1, Subject field(s)
- Scientific Measurements and Analyses
- Wastewater Treatment
- Collaboration with Health Canada
Record 1, Main entry term, English
- CT concept
1, record 1, English, CT%20concept
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
- CT criteria 2, record 1, English, CT%20criteria
correct, noun
- CT 3, record 1, English, CT
correct, noun
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Primary disinfection is the application of a disinfectant in the drinking water treatment plant, with a primary objective to achieve the necessary microbial inactivation. The efficacy of disinfection using chlorine can be predicted based on a knowledge of the residual free chlorine concentration, temperature, pH, and contact time. This relationship is commonly referred to as the CT concept and is used by public drinking water suppliers as one tool for ensuring adequate inactivation of organisms during disinfection. CT is the product of the residual concentration of disinfectant (C), measured in mg/L at the outlet of the contact chamber, and the disinfectant contact time (T), measured in minutes. The CT values required to achieve the necessary inactivation will depend on the microorganism targeted, pH, and temperature. 1, record 1, English, - CT%20concept
Record 1, French
Record 1, Domaine(s)
- Mesures et analyse (Sciences)
- Traitement des eaux usées
- Collaboration avec Santé Canada
Record 1, Main entry term, French
- critère CT
1, record 1, French, crit%C3%A8re%20CT
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- concept CT 2, record 1, French, concept%20CT
correct, masculine noun
- CT 3, record 1, French, CT
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La désinfection primaire consiste à utiliser un désinfectant dans une usine de traitement de l'eau potable dans le but premier d'inactiver les pathogènes microbiens. Il est possible de prédire l'efficacité d'une désinfection au chlore d'après la concentration résiduelle de chlore libre, la température, le pH et le temps de contact. Cette relation est communément appelée le critère CT et les fournisseurs publics d'eau potable s'en servent pour assurer l'inactivation adéquate des organismes pendant la désinfection. Le CT correspond à la concentration résiduelle (C) de désinfectant, en mg/L, mesurée à la sortie du bassin de chloration, multipliée par le temps de contact (T) avec le désinfectant, en minutes. La valeur CT requise pour parvenir à l'inactivation nécessaire varie selon le microorganisme ciblé, le pH et la température. 4, record 1, French, - crit%C3%A8re%20CT
Record 1, Spanish
Record 1, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
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:


