8. If all connections are tight and do not leak, replace the gloves and goggles in the nurse tank emergency kit. The breakaway coupler is dated and has a service life of three years. Anhydrous ammonia has the potential to be one of the most dangerous chemicals used in agriculture today. The liquid level float gauge indicates the level of liquid anhydrous ammonia in the tank (Figure 8). External Visual Inspection Guidelines for Anhydrous Ammonia Nurse Tanks and Applicator Tanks. One “slicker suit,” a rain suit that is impervious to ammonia. Clothing should be heavy duty and of a tightly woven fabric. All valves must be identified as to liquid or vapor service. Put on the gloves and goggles from the emergency kit on the nurse tank. 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The chains help ensure that the vehicle towing the nurse tank will remain in control of the nurse tank if the hitch pin fails. Technical guidance for ammonia-based refrigeration systems is available in various Australian Standards including: We appreciate your input into making our site better. Safety Requirements for the Storage and Handling of Anhydrous Ammonia, Publication K61. Title Demonstrate knowledge of anhydrous ammonia and safe practices for its use as a refrigerant Level 3 Credits 6 . Examine the hose carefully before making connections to find problems that may cause a hose failure. Preventing Ammonia Burns and How to Treat Them, Michigan State University Extension, Michigan State University. The liquid withdrawal valve (Figure 4) connects the nurse tank hose to the interior of the nurse tank for removal of the ammonia. Always assume something will happen. Although the hose is protected by an excess flow valve in the liquid withdrawal valve on the nurse tank, the hose must be in good condition to prevent an uncontrolled release (Table 3, Nurse Tank Hose Safety Checklist). Most uncontrolled releases are due to improper procedures, careless or untrained workers, or faulty equipment. The nurse tank running gear should be inspected before each use. Most hose failures occur within 12 inches of the hose end due to flexing of the hose while attached to the nurse tank or applicator. The safe handling and use of cylinders containing anhydrous-amm Aherin, R., L. Schultz, 1984. Iowa Fertilizer and Chemical Association. This valve has a five-year replacement requirement. When anhydrous ammonia contacts water, it forms ammonium hydroxide. Anhydrous ammonia (NH3) is a hazardous chemical and must be dealt with carefully. Replace pressure relief valves (PRVs). 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