Mixed grain - Chapter 9 | Official Grain Grading Guide
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 Regulationsas “any pesticide, herbicide, dessicant or inoculant.”
Representative portion for grading
All grading is done on representative portions divided down from the clean sample, using a Boerner-type divider.
The terms “Minimum” and “Maximum” refer to the range of sample portion size to be analyzed when an objective factor is present. The optimum representative portion (see glossary) is determined by taking into consideration the tolerance and concentration of the objective factor being assessed.
|Grading factor||Sample portion size range|
|Excreta||working sample||working sample|
|Fertilizer pellets||working sample||working sample|
|Fireburnt||working sample||working sample|
|Odour||working sample||working sample|
|Sclerotinia sclerotiorum||500||working sample|
|Soft earth pellets||working sample||working sample|
|Stones||working sample||working sample|
|Treated seed||working sample||working sample|
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