Iowa Admin. Code r. 21-40.13
40.13(2) 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 0 percent. Water vapor penetration or WVP is measured by the standards of the U. S. Bureau of Standards as:
gm. H2O/24 hr./100sw. in./100°F./90% RH V. .0% RH.
40.13(3) The seed in the container does not exceed the percentage of moisture, on a wet weight basis, as listed below:
| Agricultural seedsPercent Beet, field7.5 Beet, sugar7.5 Bluegrass, Kentucky6.0 Clover, crimson8.0 Fescue, red8.0 Ryegrass, annual8.0 Ryegrass, perennial8.0 All others6.0 Vegetable seedsPercent Bean, garden7.0 Bean, lima7.0 Beet7.5 Broccoli5.0 Brussel sprouts5.0 Cabbage5.0 Carrot7.0 Cauliflower5.0 Celeriac7.0 Celery7.0 Chard, Swiss7.5 Chinese cabbage5.0 Chives6.5 Collards5.0 | Vegetable seedsPercent Corn, sweet8.0 Cucumber6.0 Eggplant6.0 Kale5.0 Kohlrabi5.0 Leek6.5 Lettuce5.5 Muskmelon6.0 Mustard, India5.0 Onion6.5 Onion, Welsh6.5 Parsley6.5 Parsnip6.0 Pea7.0 Pepper4.5 Pumpkin6.0 Radish5.0 Rutabaga5.0 Spinach8.0 Squash6.0 Tomato5.0 Turnip5.0 Watermelon6.5 All others6.0 |
40.13(4) The container is conspicuously labeled in not less than 8-point type to indicate:
The following standards, requirements and conditions must be met before seed is considered to be hermetically sealed: