1.1.3.18	45	-	stable up to	
1.1.3.18	45	-	stable at temperatures below, completely inactivated at 75°C	
1.1.3.18	50	-	stable below	
1.1.3.18	50	-	stable up to, activity completely lost at 75°C	
1.1.3.18	70	-	activity remains 100% below 50°C, completely lost at 70°C