(e) An NO span gas that meets the specifications of paragraph 9.5.1. and a concentration that is approximately twice the maximum NO concentration expected during emission testing shall be used.
e) On utilisera un gaz de calibrage NO conforme aux spécifications du paragraphe 9.5.1 et une concentration qui est approximativement double de la concentration maximale de NO attendue au cours de l &apos; essai d &apos; émissions.