P-29, r. 1 - Regulation respecting food

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5.2.7. The surfaces of materials and equipment that come into contact with eggs must be:
(1)  of non-corrodible materials;
(2)  smooth and free from cavities or detachable particles;
(3)  non-toxic and resistant to cleaning and disinfecting operations;
(4)  unchangeable by eggs and made so as not to spoil eggs;
(5)  free of constituents or residues that are agents of contamination of eggs.
O.C. 591-90, s. 1.