SCHEDULE 3 (Annex III to Directive 97/68/EC)
TEST PROCEDURE
Appendix 2

1.7.5 Activation of the ozonator
The ozonator is now activated to generate enough ozone to bring the NO concentration down to about 20% (minimum 10%) of the calibration concentration given in section 1.7.2. The indicated concentration (d) shall be recorded. (The analyser is in the NO mode.)