Division 2.2 F1
United Kingdom
The evaporative emissions test consists of:
- (a)
Test drive including an urban (Part One) and an extra-urban (Part Two) driving cycle, followed by two urban (Part One) driving cycles,
- (b)
Hot soak loss determination,
- (c)
Diurnal loss determination.
The mass emissions of hydrocarbons from the hot soak and the diurnal loss phases are added up together with the permeability factor to provide an overall result for the test.