7 C.F.R. § 201.36c
The 5-month limitation on the date of test in §§ 201.22 and 201.30a shall not apply when the following conditions have been met:
(b) The container used does not allow water vapor penetration through any wall, including the seals, greater than 0.05 grams of water per 24 hours per 100 square inches of surface at 100 °F. with a relative humidity on one side of 90 percent and on the other side of 0 percent. Water vapor penetration or WVP is measured by the standards of the U.S. Bureau of Standards as:
gm.H2O / 24 hr. / 100 sq. in. / 100 °F. / 90% RH V.0% RH;
(c) The seed in the container does not exceed the percentage of moisture, on a wet weight basis, as listed below:
| Agricultural seeds | Percent |
|---|---|
| Beet, field | 7.5 |
| Beet, sugar | 7.5 |
| Bluegrass, Kentucky | 6.0 |
| Clover, crimson | 8.0 |
| Fescue, red | 8.0 |
| Mustard, India | 5.0 |
| Ryegrass, annual | 8.0 |
| Ryegrass, perennial | 8.0 |
| All others | 6.0 |
| Vegetable seeds | Percent |
|---|---|
| Bean, garden | 7.0 |
| Bean, lima | 7.0 |
| Beet | 7.5 |
| Broccoli | 5.0 |
| Brussels sprouts | 5.0 |
| Cabbage | 5.0 |
| Cabbage, Chinese | 5.0 |
| Carrot | 7.0 |
| Cauliflower | 5.0 |
| Celeriac | 7.0 |
| Celery | 7.0 |
| Chard, Swiss | 7.5 |
| Chives | 6.5 |
| Collards | 5.0 |
| Corn, sweet | 8.0 |
| Cucumber | 6.0 |
| Eggplant | 6.0 |
| Kale | 5.0 |
| Kohlrabi | 5.0 |
| Leek | 6.5 |
| Lettuce | 5.5 |
| Melon | 6.0 |
| Mustard, India | 5.0 |
| Onion | 6.5 |
| Onion, Welsh | 6.5 |
| Parsley | 6.5 |
| Parsnip | 6.0 |
| Pea | 7.0 |
| Pepper | 4.5 |
| Pumpkin | 6.0 |
| Radish | 5.0 |
| Rutabaga | 5.0 |
| Spinach | 8.0 |
| Squash | 6.0 |
| Tomato | 5.5 |
| Turnip | 5.0 |
| Watermelon | 6.5 |
| All others | 6.0 |
[32 FR 12780, Sept. 6, 1967, as amended at 59 FR 64491, Dec. 14, 1994]