A-The raw material sample :
From each lot, samples are taken from every sack at different depth of these sacks. These samples are mixed together into one big sample divided into ten samples. All the ten samples are labeled by farm name, crop, plot location, date, protocol, etc…
B- The final product sample
The same procedures mentioned above in raw material sampling are to be applied, in addition to another 11th sample to be analyzed for metal detection.