To test seed viability (germination test):

A germination percentage above 85% is usually considered adequate.

1. Count out several lots of 100 seeds taken from well inside each seed sack. Keep each seed sample separate and clearly labeled.
2. Dampen squares of paper towels or toweling and spread each group of seeds on a towel so the seeds are not touching each other.
3. Cover seeds with a second damp paper towel.
4. Roll up each sandwich of seeds and put in a plastic bag (to prevent the towels from drying out.)
5. Keep the bags at room temperature.
6. After 4-5 days count how many seeds have germinated in each lot.

The percentage germination = (number of germinated seeds) x 100 / (number of seeds in the sample).

Example of a calculation:
Number of germinated seeds = 87
Number of seeds in the sample = 100
Percentage germination = 87x 100/100 = 87 %