How to Determine Whether a CDPF Meets Euro V/VI Emission Standards?

To evaluate whether a CDPF (Catalyzed Diesel Particulate Filter) complies with Euro V or Euro VI emission regulations, consider the following key factors:

1. Precious Metal Catalyst Type & Loading
   A compliant CDPF must be coated with sufficient amounts of platinum (Pt), palladium (Pd), or similar catalysts to enable efficient oxidation of soot and NO at low temperatures.

2. Filtration Efficiency and Regeneration Capability
   The DPF should achieve a PM filtration efficiency of over 90% and feature passive or active regeneration mechanisms to prevent clogging.

3. Lab-Based Emission Testing
   Certified third-party laboratories (e.g., TUV, SGS) should validate that the engine fitted with the CDPF meets or exceeds Euro V/VI limits for PM, CO, and NOx emissions.

4. Structural Design and Cell Density (CPSI)
   CDPFs designed for high emission standards typically use high CPSI substrates (e.g., 400 CPSI) to increase contact area and filtration performance.

5. Compliance Certifications
   Verify if the product has passed CE, EPA, CARB, or other recognized emission control certifications or has test reports available.

6. Real-World Performance Feedback
   Vehicle inspection results and customer use cases can offer practical insight into whether the CDPF performs up to Euro V/VI expectations.