SCBA units supply air to breath, rather than just filtering available air. External Visual Inspection Guidelines for Anhydrous Ammonia Nurse Tanks and Applicator Tanks. Safety and first aid instructions must be on the tank. Emergency Equipment (for Escape Only). If all connections are tight and do not leak, replace the gloves and goggles in the nurse tank emergency kit. There are a number of controls that workplaces must follow under the Health and Safety at Work (Hazardous Substances) Regulations. Anhydrous means the ammonia is without water. To work with liquid ammonia, you may need eye, face, and skin protection. Sagging low-pressure discharge hoses are a source of exposure to anhydrous ammonia because the anhydrous ammonia in the sag will flow toward the applicator knife and be released when the machine is lifted out of the ground. Objective: This procedure is designed to describe the Technical Operating Specifications (TOS), and to set down the Standard Operating Procedures for the safe operation of Ammonia … Damaged tissue must be removed surgically so that healing can proceed. Take hot work permitting precautions whenever hot work will be performed in areas where ammonia is present. Keep the informative decals on the equipment up to date. inspecting for cracks, broken welds and bent members. The bleeder valve is used to bleed or drain pressurized anhydrous ammonia from a closed hose or valve (Figure 2). Safety features should be checked each time before using the equipment in the field. Additional water should be carried on every tractor used in field applications and in every field support motor vehicle. Stand so that your face is away from the opening of the bleeder valve on the breakaway coupler. A two-cartridge respirator is effective only for exposure levels of less than 300 ppm. If emergency help is needed, call toll-free 1-800-472-2121 or 911. Do not attempt to remove any clothing that is frozen to the skin. Anhydrous ammonia has a distinct odor, which humans can detect in concentrations as small as 5 parts per million (ppm). When anhydrous ammonia contacts water, it forms ammonium hydroxide. In event of a spill or leak, immediately put on escape-type respirator and exit the area. Inspect and maintain ammonia storage and processing equipment to prevent leaks and exposures. The North Dakota Legislature adopted the following rules as a pilot project for locking anhydrous ammonia tanks in several North Dakota counties. Your rehabilitation and return to work journey will be easier if you know your options, the steps to take, and who’s responsible for what. The extremely low temperature causes frostbite and frozen tissue. 10. 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Wheel bearings should be checked and repacked annually. Having another set readily available on the tractor is an excellent idea. Ammonia is a chemical compound used as a fertilizer because it is rich in nitrogen. What is anhydrous ammonia (NH3), and why is it so risky to handle? Anhydrous ammonia will seek this moisture. Clean hose/applicator connectors before connecting them. Everyone who works with anhydrous ammonia should carry a 6- or 8-ounce squeeze bottle of fresh water on their person at all times. A concentration of more than 5,000 ppm will disable a person so that escape is impossible and suffocation results. See Table 7 for a checklist to prevent forgetting a safety check. Introduction . Information about work health and safety and electrical licensing, registration and training. Anhydrous ammonia – used in manufacturing, refrigeration and agriculture – is a pungent, colorless and toxic gas or liquid that, when concentrated, is corrosive to human tissue upon contact, according to NIOSH. These rules are included in this publication as recommended practices for anyone working with anhydrous ammonia in agriculture. Leave the system open until the screen is cleaned and replaced. They will protect you only in areas of low ammonia concentrations. It also is part of the bulk storage facility used to stop the flow of anhydrous ammonia when the operator of the facility detects an emergency situation and decides to stop the transfer of anhydrous ammonia immediately. Safety procedures for working with anhydrous-ammonia (7664417) are presented. 3. A loading platform because climbing or standing on the wheels of nurse tanks is not permitted while filling nurse tanks, 2. The burns will result in damage to the eyes, such as cataracts, glaucoma and possibly some permanent vision loss and disfigurement. Figure 1. 2. The following five personal protective equipment items are required by the North Dakota Anhydrous Ammonia Law to be readily available at the storage site: 1. It can explode if released in an enclosed space with a source of ignition present, or if a vessel containing anhydrous ammonia … Bleeder valves are used in several processes of handling anhydrous ammonia. The fit should be loose enough for easy removal but snug enough for good protection. Steering systems should be checked regularly and lubricated. Contractors 12. The intake for this valve reaches nearly to the bottom of the tank so that liquid ammonia will be withdrawn until the tank is nearly empty. 1. First aid procedures are described for inhalation exposures, eye and skin contact, or ingestion. Make necessary hitch repairs or replacements and reattach the nurse tank to the applicator, using a safety clip on the hitch pin and the nurse tank safety chains. Because the atomic weights of nitrogen and hydrogen are not the same, the weight ratio is 82.5 percent nitrogen to 17.5 percent hydrogen. Dirty water may not flow through the reservoir hose, preventing treatment of the exposure. Wearing protective equipment greatly reduces the chance of injury from an ammonia release. When a component is found to be defective, it must be repaired or replaced. Protective measures are needed to ensure the safety of those working with NH3 and any people who live, work, or otherwise are near NH3. Review the instructions when needed. It serves as an effective industrial refrigerant gas, which presents unique challenges to safely manage. The risk of working with it is high because of its strong affinity for water, caustic nature, high pressure and very low temperature created when pressure is released. Anhydrous ammonia (ammonia)1 is an industrial and commercial compound with ever increasing popularity in a multitude of applications. Flush the exposed area immediately to decrease injury caused by the anhydrous ammonia coming in contact with skin or clothes. Exposure to the eyes and respiratory system presents the greatest challenge in administering first aid. The safety clip will keep the hitch pin from working out and releasing the nurse tank. Put on the PPE, open up the system and if there is no ammonia present, remove the PPE. The nurse tank hose must be made of approved materials and braiding, such as rayon, rylon/Kevlar or stainless steel. Every worker should carry a 6- or 8-ounce plastic squirt bottle in their shirt pocket for the first flushing of the eyes. Respiratory protection is extremely important, but also limited in what equipment is available. Living tissue is dehydrated quickly and the cells destroyed on contact. Open-vented shop goggles never should be used. Find health and safety information and guidance about your industry and the kind of work you do. The acute toxicity of ammonia is a major consideration in the safe design and operation of refrigeration systems. Few problems occur when the ammonia is being handled and applied as intended. The caustic nature of anhydrous ammonia causes severe chemical burning injury. Hazard analysis However, never modify the written instructions by changing or eliminating steps. Check the wind direction. It must be replaced every five years if it has nonmetallic seats and tested every five years in lieu of replacement if it has metallic seats. ventilation system). 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. Examine the hose carefully before making connections to find problems that may cause a hose failure. The safety clip will keep the hitch pin from working out and releasing the nurse tank. 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