3.4.11.B4	90	-	2 h, about 20% loss of activity	719480	
3.4.11.B4	95	-	about 15% loss of activity after 1 h, about 70% loss of activity after 2 h	719480	
3.4.11.B4	98	-	2 h, over 70% of the activbity remains	719112	
3.4.11.B4	98	-	2 h, over 70% of the activity remains	719112