The basic emission testing procedure follows a simple 4-step process:

STAGE 1 – Preparation

  • Vehicle is delivered into the preparation area and is prepared to ensure compliance to international test requirements. This includes changing to a reference fuel and checking and cleaning of the tyres.

STAGE 2 – Soaking

  • Vehicle is placed in an environmentally controlled chamber for a minimum period of 6 hours. This is to assimilate the vehicle to the temperature and humidity of the chamber.

STAGE 3 -Testing

  • Vehicle is pushed into the test area and secured onto a chassis dynamometer.
  • Vehicle is started up and driven according to a specified drive cycle. Emission collected via the exhaust pipe is then accurately analysed.