Table 5. Time Required to Reach the Threshold of 85, 80, 75, 70, and 65% Retained Tensile Strength.

		time (days)
temperature (°C)	10,000/T (1/K)	85% retention	80% retention	75% retention	70% retention	65% retention
60	3.00	11	19	28	36	44
70	2.92	3	6	8	10	13
80	2.83	2	3	4	5	6