ANNEX IVEMISSIONS DATA REQUIRED AT TYPE-APPROVAL FOR ROADWORTHINESS PURPOSES

Measuring carbon monoxide emissions at idling speeds

1.INTRODUCTION

1.1.

This Annex sets out the procedure for measuring carbon monoxide emissions at idling speeds (normal and high) for positive-ignition engines fuelled with petrol or ethanol (E85) or positive-ignition engines fuelled with NG/Biomethane or LPG installed in M2, N1 or M1 vehicles with a maximum permissible mass not exceeding 7,5 tonnes.