NAC587.350. Nevada standard potatoes: Standards for classification and grading.

     1. Nevada standard potatoes consist of one variety or are potatoes of similar varietal characteristics which:

     (a) Are not seriously misshapen;

     (b) Are free from freezing injury, black heart, late blight, southern bacterial wilt, ring rot, soft rot and wet breakdown;

     (c) Are free from serious damage caused by external defects from air cracks, bruises, dirt, enlarged lenticels, discoloration, flea beetle injury, greening, rhizoctonia, scab, sunburn, second growth, growth cracks, wireworm or grass damage, insect or worm damage, cuts (except that potatoes with clipped ends will be scored against the tolerance for external defects); and

     (d) Are free from serious damage of internal defects caused by hollow heart, ingrown sprouts and internal discoloration.

     2. Nevada standard potatoes must meet the requirements for the grade of U.S. No. 2 if they do not have clipped ends. They must be not less than 2 inches in diameter or 4 ounces in weight, except as provided in this section. At least 40 percent of the potatoes by weight in the lot must be 6 ounces or larger.

     3. To allow for variations incident to proper grading and handling, not more than 10 percent of the Nevada standard potatoes in any lot may be below the requirements of the grade and not more than the following percentages are allowed for the defects listed:

     (a) Six percent for external defects.

     (b) Six percent for internal defects.

     (c) One percent for soft rot or wet breakdown.

     4. Not more than 3 percent of the Nevada standard potatoes in any container may be below the minimum size except that a tolerance of 5 percent is allowed for potatoes packed to meet a minimum size of 6 ounces or larger. A further requirement is that not more than 2 percent of the potatoes may be smaller than 2 inches in diameter or 4 ounces in weight.

     5. Individual samples of Nevada standard potatoes must not have more than 1 1/2 times the tolerances specified, except that at least one defective and one offsize potato may be permitted in any sample if the averages for the entire lot are within the tolerances specified.

     [Dep’t of Agriculture Reg., 87.51, eff. 3-1-73; A 5-15-73; 8-6-80]