My previous article on the Anhydrous Ammonia requirements generated a lot of questions, mostly about how OSHA worded their requirements when it came to Excess Flow Valves, Check Valves, Unloading, and Emergency Shutoff Valves. So this posting I used one of my favorite sources, WA States LNI standards, to present the material in a more straight forward manner. I am just covering the non-refrigerated tanks and the operational designs in this article.
You must locate Anhydrous Ammonia containers either: