5.2.1. A grading station must contain:(1) a room for receiving eggs and storing them in separate lots before grading, equipped with an accurate thermometer in good working order and graduated from at least 0ºC to 30ºC;
(2) a room for grading and packing of eggs, and for marking their containers, equipped with apparatus for washing, candling, grading and marking, and with an accurate thermometer in good working order and graduated from at least 0ºC to 30ºC;
(3) a room for storing graded eggs, equipped with an accurate thermometer in good working order and graduated from at least 0ºC to 30ºC, and a hygrometer in good working order and graduated from at least 25% to 100% relative humidity;
(4) washrooms for the employees;
(5) a room or a closed compartment for storing cleaning materials and containers of detergents and disinfectants;
(6) a room or a closed compartment for storing packing materials;
(7) a room or a closed compartment for storing garbage.