Oats - Chapter 7 | Official Grain Grading Guide

Export grade determinants tables

Oats, Canada Western (CW)

Export grade determinant tables - Oats, Canada Western - 1
Grade name (1) Total material through No. 4.5 round hole sieve % (2) Small seeds % (3) Large seeds through No. 5 buckwheat sieve % (4) (1) + (3) Total removable material %
No. 1 CW 0.2 0.10 0.2 0.2
No. 2 CW 0.2 0.10 0.2 0.2
No. 3 CW 0.2 0.10 0.2 0.2
No. 4 CW 0.2 0.10 0.2 0.2

The columns 1 to 4 refer to factors which are assessed in determining commercial cleanlines.

Export grade determinant tables - Oats, Canada Western - 2
Grade name Damage and foreign material
Damage Barley % Cereal grains other than wheat or barley % Ergot % Large seeds %
Frost % Heated / Rotted % Total damage %
No. 1 CW 0.1 Nil 2 0.75 1 Nil 0.2
No. 2 CW 4 0.1 4 1.5 2 0.025 0.3
No. 3 CW 6 0.5 6 3 3 0.025 0.5
No. 4 CW No limit 1 8 excluding frost 8 8 0.05 1
Export grade determinant tables - Oats, Canada Western - 3
Grade name Damage and foreign material
Mineral matter Sclerotinia % Wheat % Wild oats % Total damage and foreign material %
Stones % Total %
No. 1 CW 0.017 0.033 Nil 0.75 1 2
No. 2 CW 0.066 0.066 0.025 1.5 2 4
No. 3 CW 0.15 0.25 0.025 3 3 6
No. 4 CW 0.15 0.25 0.25 8 8 8 excluding frost