1.8.4.2	37	-	phosphate buffer, 5 h without loss of activity	
1.8.4.2	60	-	30 min, 50% loss of activity	
1.8.4.2	60	-	30 min, 30% loss of activity	
1.8.4.2	65	-	30 min, 90% loss of activity	
1.8.4.2	80	-	30 min, about 60% loss of activity