Skip to content |

Common menu bar links

Domestic mustard seed – Chapter 12
Official Grain Grading Guide

Export shipments

Export shipments can be commercially clean or not commercially clean.

Commercially clean

Shipments defined as commercially clean when the net dockage does not exceed 2.5% of the sample weight.

Dockage is reported to the nearest

0.1% for samples representing commercially clean shipments loaded from a single terminal or transfer elevator
0.01% for composite samples representing shipments loaded from more than one terminal or transfer elevator

A deduction for broken and reasonably sound mustard seed handpicked from the material and removed as dockage is allowed

On shipments not for direct export, of up to 0.50%
On shipments for direct export, of up to 0.75%
On shipments ex primary elevators, of up to 0.50%

Not commercially clean (NCC)

Shipments that do not meet the standards for commercial cleanliness are referred to as not commercially clean. Such shipments are allowed only with the permission of the CGC.

For samples representing not commercially clean shipments approved by the CGC for shipment from terminal and transfer elevators, dockage is reported to the nearest

0.1% for samples representing commercially clean shipments loaded from a single terminal or transfer elevator
0.01% for composite samples representing shipments loaded from more than one terminal or transfer elevator

Instead of the allowances for broken seed in commercially clean shipments, a direct deduction of up to 0.2% is applied to establish net dockage.

Determination of dockage

Follow procedures for normal cleaning, with the Carter dockage tester set up as follows. You also need the No. .028 and No. .032 slotted hand sieves.

Setting	Export
Feed control	#3
Air control	#5
Riddle	No. 000
Top sieve	Blank tray
Centre sieve	None
Bottom sieve	None
Sieve cleaner control	Off

Composition of dockage

In export domestic mustard seed shipments, dockage consists of

Material other than mustard which passes over the No. 000 riddle or remains ontop of the round-hole sieve
Material that passes through the No. .028 or No. .032 slotted hand sieve, less the applicable allowance for broken or reasonably sound small whole mustard seed
Material removed by aspiration

Grading

Domestic mustard seed on export is graded in accordance with export specifications. Where there are no export specifications, the primary specifications are used.