Miscellaneous Testing

In order to protect the environment keeping the air quality as clean as possible , exhaust emissions regulation around the world have been strengthened considerably. In motor vehicles with diesel engines, particulate matter (PM) and nitrogen oxide (NOx) emission are the main concern, and efforts have been focused on the development of technology which can reduce them effectively with minimum fuel economy penalty. Selective catalytic reduction (SCR) converters using urea solution as the reduction agent is considered to be a key technology for reducing NOx emissions. The quality of the urea solution used for that technology needs to be specified to ensure reliable and stable operation of the SCR converter systems.