The class of a consignment of wheat shall be determined as follows:
| (a) | Obtain a working sample of at least 500 g and screen the working sample in the manner prescribed in regulation 16. |
| (b) | Take at least 100 g of the screened wheat and remove all other grain, unthreshed ears and foreign matter by hand. |
| (c) | Obtain a working sample of at least 25 g each after all other grain, unthreshed ears and foreign matter have been removed and separate the different cultivars. |
| (d) | Determine the combined mass of all of the cultivars that belongs according to the same class and express the mass thus determined as a percentage of the mass of the working sample. |
| (e) | Such percentage represents the percentage of all the cultivars that belongs according to the same class in the consignment. |
