1.4.9.2 20 60 full activity after incubation for 20 min 396592 1.4.9.2 70 - 40 min, stable, no loss of activity 655062 1.4.9.2 80 - 10 min, loss of 20% activity 655062 1.4.9.2 100 - 10 min, inactivation 655062