translate English to French: "response time" means the difference in time between the change of the component to be measured at the reference point and a system response of 90 per cent of the final reading (t90) with the sampling probe being defined as the reference point, whereby the change of the measured component is at least 60 per cent full scale (FS) and takes place in less than 0.1 second.
Le constructeur doit fournir un système de traitement aval qui a subi un traitement préliminaire d'encrassage de manière à ce que la régénération se produise au cours d'un essai WHTC.