ACCURACY - GTR's release time varies over the temperature range stated in the chart below. One day releases have a variability of 6 hours between hash marks. All other time durations have a variability of 12 hours between hash marks. The hash mark on the left represents the actual release time at the temperature above the hash mark. For instance, an A4 will release at 24 hours at 53F. At the right hash mark, 59F, it will release at 18 hr. For a 2 day B4, the GTR will release at 48 hr. at 46F and at 36 hr. for the temp above the right hash mark, 57F. For temperatures between the hash marks, release times can be approximated. In the event GTR release timing is longer than desired, the releases can be "burned off" by pre-soaking them to corrode off the extra hours. Do not place a full bag of releases in a small bucket of salt water, as the chemical reaction will increase the water temperature thereby altering the corrosion rate.