(Plant employees) may be exposed to (ammonia hazards).Logical formLearned from2 sentences. (Operating procedures) can be for (ammonia systems).Logical formLearned from2 sentences. (Ammonia safety relief valves) may be inspected.Logical formLearned from2 sentences. (Ammonia alarms) can be operational.Logical formLearned from2 sentences. Responders to an (ammonia leak) may receive training.Logical formLearned from2 sentences. An (ammonia refrigeration system) may operate at a facility.Logical formLearned from2 sentences. A release of ammonia may result in some injuries.Logical formLearned from2 sentences. Releases of ammonia may result in some injuries to workers.Logical formLearned from2 sentences. (Ammonia refrigeration systems) may include meat.Logical formLearned from2 sentences. Ammonia can be in (refrigeration facilities).Logical formLearned from2 sentences. Anhydrous ammonia can be in (refrigeration systems).Logical formLearned from2 sentences. Vessels may be used for storage of ammonia.Logical formLearned from2 sentences. Sites can be constituted-of-or-filled-with (ammonia service tanks).Logical formLearned from2 sentences. Ammonia may cause skin.Logical formLearned from2 sentences. Ammonia may be used as a (cleaning agent).Logical formLearned from2 sentences.