Red Fuji apples that meet the national standard of fresh apples in People's Republic of China (PRC) (referred to as "national standard of apples" for short) have a quality index of first-class and above, and the fruit diameter is greater than or equal to 80mm, in which the quality tolerance is less than 5%, that is, the unqualified fruits such as scratches, crushing and thorns are less than 5%.
The delivery standard of futures quotation is strict, which cannot be directly equivalent to the graded apples directly sold by fruit farmers. The actual delivery needs to be reordered. According to the field survey, the qualified rate of strictly graded fruit farmers is mostly 50-70%.