28. Sampling method: The sampling method for particulate matter emission used for the purpose of applying the second paragraph of section 25 and section 32 is that published by Environment Canada, Standard Reference Methods for Source Testing: Measurement of Emissions of Particulates from Stationary Sources, numbered EPS-1-AP-74-1.
R.R.Q., 1981, c. Q-2, r. 2, s. 28; O.C. 476-91, ss. 3 and 8.