201.65—Noxious weed seeds in interstate commerce.
Tolerances for rates of occurrence of noxious-weed seeds shall be recognized and shall be applied to the number of noxious-weed seeds found by analysis in the quantity of seed specified for noxious-weed seed determination in § 201.46, except as provided in § 201.16(b). Applicable tolerances are calculated by the formula, Y=X 1 1.96√X, where X is the number of seeds represented by the label or test and Y is the maximum number within tolerance. 1 Some tolerances are listed in the table. The number found as represented by the label or test (Column X) will be considered within tolerance if not more than the corresponding number in Column Y are found by analysis in the administration of the Act. For numbers of seeds greater than those in the table and in case of additional or more extensive analyses, a tolerance based on a degree of certainty of 5 percent (P=0.05) will be recognized.
Code of Federal Regulations
Footnote(s): 1 Rates per pound or ounce must be converted to the equivalent number of seeds found in § 201.46 , Table 1, Minimum weight for noxious-weed seed examination (grams).
| Number represented by the label or test (X) | Maximum number within tolerances (Y) | Number labeled or represented (X) | Maximum number within tolerances (Y) |
|---|---|---|---|
| 0 | 2 | 16 | 24 |
| 1 | 4 | 17 | 25 |
| 2 | 6 | 18 | 27 |
| 3 | 8 | 19 | 28 |
| 4 | 9 | 20 | 29 |
| 5 | 11 | 21 | 30 |
| 6 | 12 | 22 | 32 |
| 7 | 13 | 23 | 33 |
| 8 | 14 | 24 | 34 |
| 9 | 16 | 25 | 35 |
| 10 | 17 | 26 | 37 |
| 11 | 18 | 27 | 38 |
| 12 | 20 | 28 | 39 |
| 13 | 21 | 29 | 41 |
| 14 | 22 | 30 | 42 |
| 15 | 23 |