4 ms·
To be clear, "small quantities" are in units of parts per million. 5ppm (0.0005%) and the room smells of ammonia, 25ppm means you should be wearing a respirator
by LeifCarrotson 2y ago
To be clear, "small quantities" are in units of parts per million. 5ppm (0.0005%) and the room smells of ammonia, 25ppm means you should be wearing a respirator, 500 ppm (0.05%) can be lethal.
Warning that 15% air-ammonia mixtures can burn is like warning that 100 kg of TNT could give you a concussion if it fell on your head. It's just not the concern at all.
- ClumsyPilot 2y agoThis risk factor sounds less like a normal chemical substance and more on the level of uranium
- adrianN 2y agoIt’s comparable to carbon monoxide, except you can’t smell that one.