PyroGenesis Canada Inc (PYRGF)

[Tom Joad]

Mesh size. I found out since I asked the question what the notation means. Pyrogenesis is using a standard notation for mesh size.

For -45/+15µm powder, powder with all sizes of particles is sifted through 45 µm mesh so all sizes of powder smaller than 45 µm is collected. Then what's collected is sifted through 15 µm mesh so everything that's less than 15 µm is collected on one side, and everything that's between 15 and 45 µm is collected on the other side.