Control of CO and NO2 emissions from the resurfacer37
| Means | Comments |
|---|---|
| *Guidelines that can be used for all toxic emissions from the resurfacer. | |
| Regular testing of CO | The rate of CO must be less than 0.5% for resurfacers driven by propane and exhaust pipes less than 1.0% for those driven by gasoline |
| Testing includes samples*; | |
| Idling test after 3 minutes | |
| High rate test after 5 minutes | |
| The probable cause of an excessive quantity of CO; | |
| At idle, is a choke problem | |
| At a high rate, is an undersupply of air | |
| Permanent installation of an apparatus to measure the concentration of gas* | Capable of immediately detecting of all abnormal concentrations of toxic gas at the opening of the exhaust pipe |
| The installation of a warning light or of a buzzer on the instrument panel that will warn the employee of a malfunction | |
| Regular maintenance of the motor* | General inspection and tune up of the motor every 6 motor weeks or for every 50 hours of use |
| Inspection of contaminant emission | |
| Carburettor adjustment | |
| Carburettor cleaning | |
| Inspection of the air filter | |
| Inspection of the throttle | |
| Motor equipped with a catalytic purifier | The purifier can reduce the emissions of CO and non-burned hydrocarbons by up to 95%. The catalytic purifier functions adequately when it is heated up (5 to 7 minutes) |
| Operate with an optimal air/carbon mixture | Especially for gas resurfacers. |
| A mixture too rich (reduction of air/carbon relation) produces an excessive quantity of NO2 | |
| Qualified personnel to operate the resurfacer* | An experienced employee can reduce the working time of the surfacer to a minimumin |
| Frequency of resurfacing* | Avoid if possible the surfacing between each period |
| Space out the use to 90 minutes instead of 60 minutes | |