Multi-Sector Air Pollutants Regulations

Marginal note:Three test runs

• 27 (1) A stack test consists of three consecutive test runs conducted within a period of 48 hours, each of which lasts at least 30 minutes and results in a determination of the boiler’s or heater’s NO_x emission intensity.

• Marginal note:Operating conditions for test runs

  (2) The test runs must be conducted while the boiler or heater meets the following conditions:

  • (a) it is operating with at least 50% of the input energy in its combustion chamber resulting from the introduction of gaseous fossil fuel;

  • (b) it is operating at at least 60% of its rated capacity;

  • (c) it is operating at a steady state;

  • (d) it is operating with preheated air, if it is equipped to preheat air; and

  • (e) the same type of gaseous fossil fuel — natural gas or alternative gas — is introduced into its combustion chamber.