Rye – Chapter 5
Official Grain Grading Guide

• Previous page
• Table of contents
• Next page

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, or 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 rye for grading, grams

Grading factor	Minimum	Optimum	Export
Broken	50	100	100
Ergot	500	1000	1000
Excreta	working sample	working sample	working sample
Fireburnt	500	working sample	working sample
Fusarium damage	10	100	100
Heated	50	100	100
Matter other than cereal grains	50	100	250
Odour	working sample	working sample	working sample
Other cereal grains, excluding wheat	50	100	250
Sclerotinia sclerotiorum	500	1000	1000
Smudge	working sample	working sample	working sample
Soft earth pellets	working sample	working sample	working sample
Sprouted	10	50	50
Stones	250	1000	1000
Wheat	50	100	250

• Previous page
• Table of contents
• Next page