In the past 2-3 years, I have begun seeing Anhydrous Ammonia systems that claim to be built to ANSI K61.1 or CGA 2.1, but somehow these processes do not have the Emergency Shutdown Systems required by these two Recognized and Generally Accepted Good Engineering Practices. So with the help of the Illinois Fertilizer & Chemical Association, I thought it would be helpful to straighten out the confusion…
(emphasis by me)
CGA 2.1-2014 states:
5.10.8.1