Flaxseed and solin – Chapter 11
Official Grain Grading Guide

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Grading

Important definitions

Net weight of sample

The sample after cleaning and removal of dockage is referred to as the cleaned sample. Its weight is the net weight of the sample. Percentages by weight for grading refer to percentages of the cleaned sample, the net weight.

Hazardous substances in samples

Wear gloves and a mask to handle any samples that you suspect may contain hazardous substances. Hazardous substances are defined in the Regulations as “any pesticide, herbicide, dessicant or inoculant.”

Representative portion for grading

All grading is done on representative portions divided down from the cleaned sample, using a Boerner-type divider.

Values in the following table represent a range of recommended portions of samples for grading. Refer to definition of “Representative portion” in the glossary for a complete description of the terms “Minimum”, “Optimum” and “Export”.

Representative portion of flaxseed or solin for grading, grams

Grading factor	Minimum	Optimum	Export
Broken	25	100	100
Damage (visual) Damage (crush)	10 5 strips	50 10 strips	50 10 strips
Ergot	100	500	500
Excreta	working sample	working sample	working sample
Fireburnt	working sample	working sample	working sample
Heated	10	50	50
Inseparable seeds	20	50	50
Odour	working sample	working sample	working sample
Other classes	20	50	50
Sclerotinia sclerotiorum	100	500	500
Soft earth pellets	working sample	working sample	working sample
Stones	100	working sample	working sample

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