(a) Fairly uniform in size. “Fairly uniform in size” means that in a sample of 100 ounces:

(1) For prunes that average 53 prunes or less per pound, the count per pound of 10 ounces of the smallest prunes does not vary from the count per pound of 10 ounces of the largest prunes by more than 25 points; or

(2) For prunes that average 54 prunes or more per pound, the count per pound of 10 ounces of the smallest prunes does not vary from the count per pound of 10 ounces of the largest prunes by more than 45 points.