3.The standard] reference methods laid down in Commission Implementing Regulation (EU) 2016/1240note shall apply to the classification of the imported cereals by standard quality.For the purpose of this paragraph, ‘flint maize’ means maize of the species Zea mays indurata the grains of which present a dominantly vitreous endosperm (hard or horny texture). They are generally orange or red. The upper part (opposite the germ), or crown, shows no fissure.Vitreous grains of flint maize are defined as grains meeting two criteria:
(a)their crown shows no fissure;
(b)when cut lengthwise their endosperm shows a central mealy part completely surrounded by a horny part. The horny part must account for the dominant part of the total cut surface.
The vitreous grain percentage shall be established by counting in a representative sample of 100 grains the number meeting the criteria referred to in the third subparagraph.The reference method for determining the flotation index for flint maize is set out in Annex XI.