3. A culler who holds a permit issued under the Cullers Act (chapter M-12.1) shall scale timber according to species or group of species and quality, using one of the following methods or a combination of them:(1) scaling by the piece, which consists in calculating the solid volume of each piece of sawn timber from its length and diameter;
(2) scaling by apparent volume, which consists in calculating the apparent volume of sawn and piled timber from the height, width and length of each pile;
(3) scaling of unsawn timber, which consists in calculating the solid volume of unsawn and piled trunks from the measurement of the diameter of the widest cut on the trunks and in establishing, by sampling, a stump volume table that makes it possible to calculate the average volume of the trunks based on their diameter;
(4) mass/volume scaling, which consists in calculating the volume of a quantity of timber from its total mass converted into a solid volume using the mass/volume conversion factor; that factor is the ratio between the total mass of the samples taken at random from the aggretate of the mass and the solid volume of those same samples.