2.6.1.45	35	-	and below, 30 min stable	
2.6.1.45	40	-	30 min, 16% loss of activity	
2.6.1.45	45	-	52% loss of activity after 30 min	
2.6.1.45	50	-	30 min, 93% loss of activity	
2.6.1.45	55	-	30 min, inactivation