The required tests shall be conducted on engines that are representative of the engine type or, where applicable, of the parent engine of the engine family to be approved.
Déanfar na tástálacha is gá ar innill atá ionadaíoch do chineál an innill nó, i gcás inarb infheidhme, do mháthair-inneall na haicme innill atá le ceadú.