The percentages of foreign matter, other classes, stones and sand in a consignment of pulses shall be determined as follows:
| (a) | Prepare a working sample by measuring off 1 kg of material from the sample of the consignment. |
| (b) | Remove all the foreign matter, other classes, all the stones and sand separately from the working sample and determine the respective masses thereof. |
| (c) | Express the masses thus determined, as percentages of 1 kg. |
| (d) | Such percentages shall respectively represent the percentage of foreign matter, other classes, the percentage of stones and sand in the consignment concerned. |
