Canadian Grain Commission
www.grainscanada.gc.ca
Common menu bar links
Domestic mustard seed – Chapter 12
Official Grain Grading Guide
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. For grading, percentages by weight refer to percentages of 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.”
Crush
A crush is one pass of the roller under firm pressure over a 100-seed stick on masking tape.
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”.
Grading — Domestic Mustard Seed, Brown
| Grading factor | Minimum | Optimum | Export |
|---|---|---|---|
| Canola | 5 | 25 | 5-25 |
| Cockle | 5 | 50 | 5-50 |
| Colour | working sample | working sample | working sample |
| Conspicuous admixtures | 5 | 50 | 5-50 |
| Damage | 5 | 10 | 10 |
| Distinctly detrimental | 5 | 50 | 5-50 |
| Distinctly green | 5 crushes | 10 crushes | 10 crushes |
| Ergot | 100 | 500 | 500 |
| Excreta | working sample | working sample | working sample |
| Fertilizer pellets | 1000 | 1000 | 1000 |
| Fireburnt | working sample | working sample | working sample |
| Heated | 5 crushes | 10 crushes | 10 crushes |
| Inconspicuous admixture | 5 | 25 | 5-25 |
| Odour | working sample | working sample | working sample |
| Other classes | 2 | 5 | 2-5 |
| Rime | 5 | 10 | 10 |
| Sclerotinia sclerotiorum | 100 | 500 | 500 |
| Soft earth pellets | 100 | working sample | working sample |
| Stones | 100 | working sample | working sample |
| Wild mustard seed | 5 | 25 | 5-25 |
Grading — Domestic Mustard Seed, Oriental
| Grading factor | Minimum | Optimum | Export |
|---|---|---|---|
| Blotched seeds | 25 | 50 | 50 |
| Canola | 5 | 25 | 5-25 |
| Cockle | 5 | 50 | 5-50 |
| Colour | working sample | working sample | working sample |
| Conspicuous admixture | 5 | 50 | 5-50 |
| Damage | 5 | 10 | 10 |
| Distinctly detrimental | 5 | 50 | 5-50 |
| Distinctly green | 5 crushes | 10 crushes | 10 crushes |
| Ergot | 100 | 500 | 500 |
| Excreta | working sample | working sample | working sample |
| Fertilizer pellets | 1000 | 1000 | 1000 |
| Fireburnt | working sample | working sample | working sample |
| Heated | 5 crushes | 10 crushes | 10 crushes |
| Inconspicuous admixture | 5 | 25 | 5-25 |
| Odour | working sample | working sample | working sample |
| Other classes | 2 | 5 | 2-5 |
| Rime | 5 | 10 | 10 |
| Sclerotinia sclerotiorum | 100 | 500 | 500 |
| Soft earth pellets | 100 | working sample | working sample |
| Stones | 100 | working sample | working sample |
| Wild mustard seed | 5 | 25 | 5-25 |
Grading — Domestic Mustard Seed, Yellow
| Grading factor | Minimum | Optimum | Export |
|---|---|---|---|
| Canola | 5 | 25 | 5-25 |
| Cockle | 5 | 50 | 5-50 |
| Colour | working sample | working sample | working sample |
| Conspicuous admixture | 5 | 50 | 5-50 |
| Damage | 5 | 10 | 10 |
| Distinctly detrimental | 5 | 50 | 5-50 |
| Distinctly green | 5 crushes | 10 crushes | 10 crushes |
| Ergot | 100 | 500 | 500 |
| Excreta | working sample | working sample | working sample |
| Fertilizer pellets | 1000 | 1000 | 1000 |
| Fireburnt | working sample | working sample | working sample |
| Heated | 5 crushes | 10 crushes | 10 crushes |
| Odour | working sample | working sample | working sample |
| Other classes | 2 | 5 | 2-5 |
| Other distinctly detrimental seeds | 5 | 50 | 5-25 |
| Rime | 5 | 10 | 10 |
| Sclerotinia sclerotiorum | 100 | 500 | 500 |
| Soft earth pellets | 100 | working sample | working sample |
| Stones | 100 | working sample | working sample |
| Wild mustard seed | 5 | 25 | 5-25 |
