What is the Tier / Stage emission standard?
TIER - the emission standard of North America, its European equivalent is the STAGE emissions standard.
Both standards apply to exhaust emissions in specialized vehicles such as agriculture, construction, etc.
- HC - węglowodory
- NOx - tlenki azotu
- PM - cząstki stałe
To achieve the lowest emissions of NOx NOx, manufacturers use the Selective Catalytic Reduction (SCR) system from Interim Tier 4 / Stage IIIB.