4.2.2.9	45	-	5 min, 50% loss of activity	
4.2.2.9	45	-	Mn2+ or Co2+ increases half-life from 4 min to 15 min	
4.2.2.9	45	70	-	
4.2.2.9	50	-	pH 7.0, 10 min, stable below	
4.2.2.9	60	-	pH 7.0, 10 min, 85% loss of activity