It is dangerous, but I wouldn't call it immediately lethal. My dad is a engineer specializing in large refrigeration systems and in 10-15 some years, they had 1 ammonia fatality in a company of 40 people or so -- worker opened valve of refrigeration system while it still had ammonia in it, large concentration of it got blown pretty much straight into their face (and obviusly lungs) he died at the hospital.
But they had other accidents (welder welding a fuel canister with fumes still in it and other such crazy or stupid things) -- this was post-Soviet environment with almost no safety controls.
The nicer property about it, is it is easy to detect leaks due to specific smells.
But they had other accidents (welder welding a fuel canister with fumes still in it and other such crazy or stupid things) -- this was post-Soviet environment with almost no safety controls.
The nicer property about it, is it is easy to detect leaks due to specific smells.