Canadian grain act ...review

[Blaithin]

https://viterra.com.au/wp-content/uploads/Wheat-Receival-Standards-2020-2021-R3.pdf https://viterra.com.au/wp-content/uploads/Wheat-Receival-Standards-2020-2021-R3.pdf
Sort of understand.

So paddock to elevator without a dockage cleaning is rare?

Is it weeds or a specific weed

Blaithin will probably be only one took look but our r3cieval standards 20/21 wheat in above link

Paddock to inland terminal with a cleaning is rare. The inland elevators do the cleaning for the most part, or the ports do it.

When we say dockage it's going to be most similar to what that chart calls Screenings and Unmillable Material.

Dockage is made up of unthreshed heads, roughage, large and small seeds, and broken wheat that falls through the sieve. In most cases dockage for wheat is very minimal and under 1%. The odd time its got more unthreshed heads which quickly weigh up. Very, very rarely is it a seed or broken grain issue causing high dockage.

Which specific seeds are taken out during cleaning aren't a concern, whether they're weeds or canola or mustard. Although some export markets have zero tolerance for some weed seeds, like thistle, that is a sales criteria for the specific shipment, not a grading standard.

After the dockage has been cleaned out of the grain then we will pick out seeds listed in the Contaminants section if they are in an amount that would cause the cleaned grain to be downgraded. Example would be you're allowed 0.6% barley in a 1 CWRS. Barley is hard to clean out of wheat so if a field is experiencing a large volunteer load then it can't all be cleaned out so will be picked out of the clean sample.

[wmoebis]

https://viterra.com.au/wp-content/uploads/Wheat-Receival-Standards-2020-2021-R3.pdf https://viterra.com.au/wp-content/uploads/Wheat-Receival-Standards-2020-2021-R3.pdf
Sort of understand.

So paddock to elevator without a dockage cleaning is rare?

Is it weeds or a specific weed

Blaithin will probably be only one took look but our r3cieval standards 20/21 wheat in above link

So when you deliver to elevator they just hand sieve over 2mm round hole sieve and material that stays on top is deducted from gross weight is that right? Anything that is left in is concidered as screenings and hand picked. Is that right?

[Rareearth]

I think terminals throw the top sieve into dockage pile, where unthreshed heads are technically not dockage. This isn’t right, only a small irritant compared to some others.


CGC
Wheat: Determination of commercially clean

Dockage is not assessed on wheat samples that meet the commercially clean specifications defined in the wheat commercially clean determinant table. All samples must be analyzed to determine if they meet commercial cleanliness standards prior to dockage assessment. The analysis of samples which are clearly not commercially clean may consist of a visual assessment. For example, if there is no doubt that a sample contains more than 0.1% of small seeds without hand sieving and weighing the seeds then dockage will be assessed using procedures defined under Determination of dockage. Where there is any doubt regarding whether the sample is commercially clean, the sample must be analyzed using the procedures outlined below in steps 1 through 14 to confirm that the sample is not commercially clean prior to assessing dockage.

Using a Boerner-type divider, divide the sample to obtain a representative portion.
Official samples shall be at least 1 kg.
Unofficial samples shall be at least 1 kg.
Place approximately 250 grams of the sample at a time on the NumberNo. 5 buckwheat sieve nested over the NumberNo. 4.5 round-hole sieve.
Move the sieves from left to right 30 times using a sifting motion. One complete motion is approximately 10 cm from the center to one side, back to the center, approximately 10 cm to the other side and back to the center.
All broken wheat passing through the NumberNo. 5 buckwheat hand sieve or the NumberNo. 4.5 round hole hand sieve is weighed and the percentage calculated to determine if it meets the commercially clean specification of the grade for broken through a NumberNo. 5 buckwheat sieve. (Column 1 in the wheat commercially clean determinant table)
Small seeds passing through the NumberNo. 4.5 round hole sieve are weighed and the percentage calculated to determine if they meet the commercially clean specification of the grade for small seeds. (Column 2 in the wheat commercially clean determinant table)
Material other than broken grain and small seeds passing through the 4.5 round hole sieve is weighed and the percentage calculated to determine if it meets the commercially clean specification of the grade for attrition. (Column 3 in the wheat commercially clean determinant table)
The sample portions remaining on top of the NumberNo. 5 buckwheat sieve and the 4.5 round hole sieve are recombined and divided using a Boerner-type divider to a representative portion of not less than 250 grams.
The portion divided from step 7 is handpicked to remove large seeds (as defined in the Glossary), roughage and wild oats.
The roughage material is weighed and the percentage calculated to determine if it meets the commercially clean specification of the grade for roughage. (Column 4 in the wheat commercially clean determinant table)
Note: If the roughage material contains unthreshed wheat heads, the heads are squeezed to remove the kernels of wheat prior to weighing. The wheat kernel is not included when assessing the concentration of roughage for commercial cleanliness. However, care should be taken to keep these wheat kernels separate. If it is determined that the sample is not commercially clean, kernels squeezed from the unthreshed heads will be included in the dockage.
The percentages of small seeds, attrition and roughage are added together to determine if the total meets the commercially clean specification of the grade for total small seeds, attrition and roughage. (Column 5 in the wheat commercially clean determinant table)
The large seeds are weighed and the percentage calculated to determine if they meet the commercially clean specification of the grade for large seeds. (Column 6 in the wheat commercially clean determinant table)
The wild oats are weighed and the percentage concentration calculated to determine if they meet the commercially clean specification of the grade for wild oats. (Column 7 in the wheat commercially clean determinant table)
The percentages of small seeds, large seeds, and wild oats are added together to determine if the total meets the commercially clean specification of the grade for total small seeds, large seeds and wild oats. (Column 8 in the wheat commercially clean determinant table)
The percentages of small seeds, large seeds, wild oats, roughage and broken grain through the NumberNo. 5 buckwheat sieve are added together to determine if the total meets the commercially clean specification of the grade (Column 9 in the wheat commercially clean determinant table)
Should the percentage concentration of any of the factors determined in steps 1 through 14 exceed the specifications set out in columns 1 through 9 of the wheat commercially clean determinant tables the sample will be considered to be not commercially clean.

Dockage will be assessed on samples determined to be not commercially clean using the procedures defined in Determination of dockage with the following exception. The exception relates to those samples which are determined, by hand sieving, to be not commercially clean because of the concentration of attritional material either alone ( Column 3 in the wheat commercially clean determinant table ) or as a component of Total Small Seeds, Attrition and Roughage ( Column 5 in the wheat commercially clean determinant table ).

The attritional material from these samples will not be reconstituted back into the sample but will be added to the dockage removed by the Carter dockage tester. This procedure will ensure that attritional material that causes a sample to be designated not commercially clean is not expelled by the fan of the Carter dockage tester and is retained in the sample in the event of a reinspection request.

Note: Large seeds, small seeds, roughage and attrition are defined in the Glossary.

[wmoebis]

You are talking Commercially Clean samples not primary normal cleaning at country elevators when buying from farmers.

That is performed as follows

Set up the Carter dockage tester with the following specifications
Feed control #6
Air control Minimum #4 (increase according to the nature of the material)
Riddle NumberNo. 25
Top sieve NumberNo. 6 buckwheat
Centre sieve NumberNo. 5 buckwheat
Bottom sieve NumberNo. 5 buckwheat
Sieve cleaner Off
Using a Boerner-type divider, divide the uncleaned sample to obtain a representative portion.
Official samples shall be at least 1 kg.
Unofficial samples shall be at least 1 kg.
Turn on the Carter dockage tester.
Pour the sample into the hopper.
After the sample has passed through the machine, turn on the sieve cleaner control for 2 to 3 seconds to remove kernels lodged in the sieve.
Turn off the dockage tester.
Lightly snap the retainer rod of the aspiration pan to loosen material gathered on the air screen.
Remove the aspiration pan.
Handpick whole sound threshed kernels of wheat from the portion passing over the riddle and return them to the cleaned sample.
Composition of dockage

Dockage includes:

Wheat with long rootlets, unthreshed wheat heads, and material other than wheat removed by the numberNo. 25 riddle
Material removed by numberNo. 5 buckwheat sieve in the lower position
Material removed by aspiration
A maximum of 10% of soft earth pellets handpicked from the clean sample
Material removed by Cleaning for grade improvement

[Blaithin]

Remember to squish to earth pellets to make sure they are earth pellets! 😂

[malleefarmer]

So when you deliver to elevator they just hand sieve over 2mm round hole sieve and material that stays on top is deducted from gross weight is that right? Anything that is left in is concidered as screenings and hand picked. Is that right?

No nothing is deducted from gross w eight.

If you go along the sceenings specs you will see different amount irvtolerances of sceenings and go tontop line and might be different grade.

Only in droughtbyears is sceenings a issuevthen they just open a new segr3gation.

Since 1981 never had cereal grain rejected at solo because of anything.

Canola yes snails.

We actually cleaned 40 t of canola for @ guy this week he gotvrejected at elevator. Stored it were cleaning it for him.

[malleefarmer]

Biggest delivery dramas is wet harvest when you have falling number issues

Good topic thanks for your tolerance to my questions i enjoy farm discussions on here

[walterm]

Do they remove screenings before exporting? Because we do is one of the reasons Canada is known as having the cleanest grain in the world.

[Blaithin]

No nothing is deducted from gross w eight.

If you go along the sceenings specs you will see different amount irvtolerances of sceenings and go tontop line and might be different grade.

Only in droughtbyears is sceenings a issuevthen they just open a new segr3gation.

Since 1981 never had cereal grain rejected at solo because of anything.

Canola yes snails.

We actually cleaned 40 t of canola for @ guy this week he gotvrejected at elevator. Stored it were cleaning it for him.

Dockage has no effect on grade here. What stays in after being cleaned is what can cause downgrading.

[malleefarmer]

Do they remove screenings before exporting? Because we do is one of the reasons Canada is known as having the cleanest grain in the world.

I believe not we have stuff all screenings