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Frequencies of analytical controls on bivalve mussels.
| Period | Microbiological quality control | Biotoxicological quality control | Viral quality control | Chemical quality control |
|---|---|---|---|---|
| May 1st – September 30th | Monthly | Bi-weekly | Monthly | Six-monthlya |
| October 1st – April 30th | Monthly | Monthly | Monthly | Six-monthlya |
Radionuclide analyses have annual frequency.
