Network for Transport Measures

NTM TN 9; 20200611 Implications of allowed emission standards in relation to test cycles used

Methods and manuals > 16. Technical Notations > Wikis > NTM TN 9; 20200611 Implications of allowed emission standards in relation to test cycles used

Emissions of CO for HDV

The emission standards used for legal requirements aims to reflect real life operation. A consequence is that test cycles for emission standards develops continuously. This means that emission levels of regulated emissions have become increasingly more stringent over the years. This is also valid within the Euro VI emission standard as the latest version is significantly tougher than the first version.

NTM uses samples of real data to assess emissions. According to latest data the effect is clear in relation to emissions of CO.

Gross weight/Euro class/after treatment of fumes CO (g/km)
34-40t Euro-IV EGR 0.85
34-40t Euro-IV SCR 1.94
34-40t Euro-V EGR 0.57
34-40t Euro-V SCR 1.87
34-40t Euro-VI 0.19