anhydrous ammonia safe work procedures

It serves as an effective industrial refrigerant gas, which presents unique challenges to safely manage. Anhydrous ammonia is a fertilizer commonly used in North Dakota agriculture. A rain suit and two canister-type gas masks are required by law in the North Dakota Century Code (Figure 1). 6. Some safety features have service life limitations supported by state laws because these features are not repairable in the field and require trained technicians to service them. This unit standard is for people who work with ammonia as a refrigerant within the refrigeration industries. However, never modify the written instructions by changing or eliminating steps. Any vehicle or towed trailer/wagon displaying an SMV sign is restricted to a road speed of not more than 25 miles per hour. Review the instructions when needed. Failure to close any of these valves may result in a dangerous spray of ammonia. This distinguishes it from ammonia/water solutions. The safe handling and use of cylinders containing anhydrous-amm Ammonia can be mixed with water and sold as ammonium hydroxide, or used in compressed gas as anhydrous ammonia (meaning without water). Start first aid treatment immediately when someone is exposed to anhydrous ammonia. Train employees to work safely with ammonia by following these general precautions and the safe work practices that apply in this facility: 1. It opens at 365 psi to relieve excess pressure due to liquid expansion. Management systems 13. The Fertilizer Institute, 1982. These forms must be on record for at least three years and available for review at the facility during normal business hours. Basic First Aid for Anhydrous Ammonia Exposure The first-response treatment for anhydrous ammonia exposure is to flush the exposed area (skin, nose, throat, eyes, and so on) with clean water for a minimum of 15 minutes. Protective measures are needed to ensure the safety of those working with NH3 and any people who live, work, or otherwise are near NH3. Liquid ammonia in the hose can vaporize and pressurize the hose after the hose valves are closed. Regularly scheduled maintenance must be conducted to ensure that the gauges and valves on a nurse tank are suitable for service. 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. Repairs can be done only by a repair organization with a valid “VR” certificate of authorization from the National Board of Boiler and Pressure Vessel Inspectors. See Table 7 for a checklist to prevent forgetting a safety check. Using Agricultural Anhydrous Ammonia Safely, EC94-738-B, University of Nebraska Cooperative Extension, University of Nebraska. The victim may hurt too much to breathe. Operators of anhydrous ammonia storage facilities must be trained in safe operating procedures and the training documented by signed forms showing the type of training, the date of training, the persons trained and the person doing the training. Leave the system open until the screen is cleaned and replaced. Unless an anhydrous ammonia nurse tank or applicator tank is empty, an owner or operator of an anhydrous ammonia storage facility may not store an unattended nurse tank or applicator tank at a facility unless the tank has an approved locking device installed. The safety relief valve is not adjustable and should be replaced if it is inoperable. Remember, never weld on a closed container of any kind; all containers must be completely cleaned and vented. The nurse tank hose should be inspected daily. The breakaway coupler is dated and has a service life of three years. In spite of the difficulty of igniting such a mixture, never weld on any container or piping that has not been completely decontaminated and cleaned of all ammonia and its salts. The tank must be labeled correctly on each end and side with the green diamond around the words DOT (Department of Transportation) “NON-FLAMMABLE GAS” and on each side and end with “Anhydrous Ammonia” in letters not less than 2 inches high. The condition of the applicator knives is important for safety reasons as well as quality application. Its chemical formula is NH3, which means that it consists of one atom of nitrogen and three atoms of hydrogen per molecule. The acute toxicity of ammonia is a major consideration in the safe design and operation of refrigeration systems. Bleeder valves should be opened slowly. Follow the restricted speed requirements for anhydrous ammonia both on and off the road. An owner or operator of an anhydrous ammonia storage facility may not fill a nurse tank or applicator tank unless the tank is equipped with an approved locking device. 4. Many safety features must be built into the anhydrous ammonia handling and application system. Ensure the ammonia is secured from access by unauthorised persons. Keep the bleeder valves open until all reconnections have been made. One cubic foot of anhydrous ammonia in a liquid state produces 855 cubic feet of ammonia gas. Anhydrous ammonia is a liquid when compressed or cooled. Do not continue filling the tank after the valve releases liquid anhydrous ammonia. The excess flow valve has a five-year replacement requirement. If your enquiry is about something more specific, please visit our Contact us page. Always assume something will happen. This valve must have a rain cap in place to prevent damage from moisture and corrosion. Do not drape a hose over any edge that allows the hose to become flat. 4. Technical guidance for ammonia-based refrigeration systems is available in various Australian Standards including: We appreciate your input into making our site better. Select hose fittings that will provide the most support and minimize this type of flexing. The replacement date is stamped on the coupler. Are you a possible major hazard facility? The protective equipment kit, containing gloves and goggles, must be attached to the tank and accessible from the ground. The valve should be partially opened when the tank is being filled so it will bleed off, or spurt, liquid anhydrous ammonia when the tank is 85 percent full. A two-cartridge respirator is effective only for exposure levels of less than 300 ppm. Having another set readily available on the tractor is an excellent idea. Anhydrous ammonia is generally safe provided safe storage, handling, operating, and maintenance procedures are in place and being followed. Anhydrous ammonia has the potential to be one of the most dangerous chemicals used in agriculture today. Only the un-vented type of goggles will minimize ammonia exposure to the eyes. It is a chemical made up of one part nitrogen (N) and three parts hydrogen (H3). A new state training requirement for growers and grower farm operators who handle anhydrous ammonia was finalized last week. Agricultural producers can transfer anhydrous ammonia only from cargo tanks to nurse tanks when the following safety requirements are met: 1. ■ Always have an 8-ounce squirt bottle of water available when working with any anhydrous ammonia equipment.■ Wear gloves and goggles when connecting or disconnecting nurse tanks and applicators.■ Always have a backup set of gloves, goggles, respirator with approved cartridge and 5 gallons of fresh water when applying or transporting anhydrous ammonia nurse tanks.■ Always work upwind of anhydrous ammonia equipment.■ Carry the nurse tank hose by the valve body or coupling rather than by the valve wheel or control handle.■ Clean hose/applicator connectors before connecting them.■ Hand tighten the valve wheel; overtightening can damage the valve or seals.■ Follow the recommended procedure for connecting and disconnecting nurse tanks and applicators. Learn about the Acts, Regulations and codes of practice we are responsible for and find information on workplace inspections and prosecutions. Always wash your hands after using ammonia … The victim always should be taken to professional medical help as soon as possible. Reviews 9. If all connections are tight and do not leak, replace the gloves and goggles in the nurse tank emergency kit. 3. Student Focused. A hydrostatic relief valve should be used anywhere anhydrous ammonia may be trapped in any section of the liquid or vapor lines of the system (Figure 7). Always position yourself upwind or across wind from a bleeder valve to be opened. When a concentrated level of anhydrous ammonia is inhaled, it will burn the respiratory system quickly. Do not apply salves, creams or ointments of any kind to the injury. If you'd like someone to get back to you about your feedback, include your contact details below. It will open only when the direction of flow is correct. Effective April 1, 2004. North Dakota law requires anhydrous ammonia nurse tanks, empty or full, to display either a slow moving vehicle (SMV) sign or a lighted rotating or flashing amber light while on a public roadway. Also, the plan is evidence that the person in control of the workplace complies with work health and safety laws. Chemical properties and exposure effects are discussed. 2. Pesticide-type vented goggles are not suitable because ammonia can pass through the indirect vents. The safety relief valve also is known as the pressure-relief valve. Welding should be done only by a welding firm with a type “R” certification in compliance with the North Dakota Century Code. Check the air pressure in the tires each time the nurse tank is used and inspect them for cuts, bruises and tread wear. Be sure the couplers are securely reattached. It can also cause very severe burns. Ammonia is also flammable at concentrations of approximately 15% to 28% by volume in air. Schwab, C.V., M. Hanna and L. Miller, 2002. Do not attempt to remove any clothing that is frozen to the skin. The water should be changed at least daily because it can absorb ammonia from the immediate environment. 750 feet from any institutional residence. During the off-season, the hose should be stored in a vertical position, hanging from the shoulder of a coupling in a cool, dry location. Bleeder valves are used in several processes of handling anhydrous ammonia. Maintaining adequate respiration for the victim until delivery to a medical facility may be difficult. Eyes are continually bathed in moisture. Anhydrous Ammonia is used in both agriculture as a fertilizer and in industrial facilities as a refrigerant for cooling and freezing. 5. Although the odour of ammonia can be detected by smell at concentrations above 5 to 10ppm people who are used to it can work without discomfort in concentrations of approximately 100ppm. The liquid fill valve (Figure 4) is used while filling the nurse tank from a bulk storage facility. Ammonia is a chemical compound used as a fertilizer because it is rich in nitrogen. 5. If emergency help is needed, call toll-free 1-800-472-2121 or 911. Additional protective equipment is required for bulk storage of anhydrous ammonia. This interior pressure is affected by the quantity and temperature of the anhydrous ammonia in the tank. Grisso, R.D., D. Morgan and R.D. First aid procedures are described for inhalation exposures, eye and skin contact, or ingestion. Everything you need to know about worker’s compensation insurance, whether you’re an employer needing to insure your workers or a worker who’s been injured at work. The caustic nature of anhydrous ammonia causes severe chemical burning injury. Precomm. Insert the male coupler (hose end fitting) back into the female coupler of the breakaway coupler unit. Open the applicator flow meter shut-off valve to prevent pressure from building in the applicator flow meter system. 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. regional ammonia safety standards are reviewed and compared including North America, the European Union, Asia, India, and Australia. People credited withthis unit standard are able to d:emonstrate 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 entire respiratory system is very moist, so anhydrous ammonia will be attracted naturally to that part of the body. As liquid anhydrous ammonia is transferred into the nurse tank, the vapor in the nurse tank is transferred to the bulk storage tank. If eyes have been exposed to anhydrous ammonia, they must be flushed with water immediately and continually and the victim must be taken to a doctor immediately. A spring-loaded valve closes when the coupler separates from the main body to prevent anhydrous ammonia from flowing out of the hose or the applicator. 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. The roll cage must be strong enough to prevent damage to the gauges and valves. It has an excess flow valve preventing anhydrous ammonia from flowing back out of the nurse tank if the hose breaks. Handling: Immediately report leaks, spills or failures of the safety equipment (e.g. Feel free to use and share this content, but please do so under the conditions of our. Anhydrous ammonia is classified as a hazardous substance. Steering systems should be checked regularly and lubricated. American National Standards Institute Inc., 1981. The liquid turns into a gas quickly producing subfreezing temperatures. A hose made with rayon braiding is good for two years from date of manufacture while a hose with nylon/Kevlar is good for four years from date of manufacture and stainless steel is good for six years from date of manufacture (Figure 3). External Visual Inspection Guidelines for Anhydrous Ammonia Nurse Tanks and Applicator Tanks. Clean hose/applicator connectors before connecting them. All bulk storage facilities have specific required safety equipment and procedures. Any tissue containing moisture is chemically burned. Call the local fire department if a major leak occurs. The decals indicate what each system component does and identifies the first aid water, other protective equipment and protective procedures. Toggle menu for What are hazardous manual tasks? The nurse tank hose must be made of approved materials and braiding, such as rayon, rylon/Kevlar or stainless steel. When mixed with lubricating oils, its flammable concentration range is increased. The tank must conform to design guidelines provided by the American National Standards Institute (ANSI). The following articles must be on the transport tank: 1) a 5-gallon reservoir of clean water, 2) ammonia-impervious gloves, 3) two full-face piece respirators with ammonia canisters and nonvented goggles. 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. 6. Anhydrous ammonia is a colourless gas that has a strong smell and is toxic, corrosive and flammable. This includes unvented goggles; rubber gloves; respirator; heavy-duty, long-sleeved shirt; and long pants. 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. 8. The safety clip will keep the hitch pin from working out and releasing the nurse tank. First-response rescue workers may not be able to treat a serious inhalation exposure. Land Grant. This valve is on top of the tank (Figure 4) and prevents excessive pressure from building up in the tank caused by overfilling or expansion from heat (Figure 9). The pressure gauge does not have a time limit to its service life, so it needs to be replaced only when it fails to function properly. Always work upwind of anhydrous ammonia equipment. The rotary gauge (Figure 10) mounted on the end of an anhydrous ammonia tank, bulk tank, nurse tank or applicator tank consists of a dip tube inside the tank and a bleeder valve. It must be maintained in a safe condition since it transfers anhydrous ammonia under high pressure from the nurse tank to the applicator tool bar. The bleeder valve is used to bleed or drain pressurized anhydrous ammonia from a closed hose or valve (Figure 2). Anhydrous ammonia causes freezing and chemical burn wherever skin and clothing are moist. The guide should be read in conjunction with Emergency Planning: A Guideline for Hazardous Industry (PDF, 4.56 MB), that provides emergency planning guidance for all hazardous industries. Skin is reduced to a sticky, gooey substance as the chemical burn progresses. Unless an anhydrous ammonia nurse tank or applicator tank is empty, a person in possession of the tank outside of an anhydrous ammonia storage facility must install an approved locking device on the tank if the tank is left unattended overnight. In 2010, a Workplace Health and Safety Queensland (WHSQ) Safety tool for ammonia refrigeration safety (which included an audit checklist and supporting reference material) was made available to industry. The tool is being updated by WHSQ and is temporarily unavailable. One pair of impervious protective boots, 5. The following articles must be on nurse tanks: 1) a 5-gallon reservoir of clean water, 2) a legal decal illustrating the step-by-step ammonia transfer process and 3) a legal decal explaining first aid procedures to follow when exposed to anhydrous ammonia. An Occupier's Guide to Emergency Planning (PDF, 0.65 MB) can assist occupiers to prepare and implement an emergency plan for ammonia-based refrigeration systems. Know where these respirators are located and how to use them. Play it Safe with Anhydrous Ammonia, University Extension, Iowa State University. Pick up the hose from the ground and place it on the tank or applicator so it is not in the way when reattaching the nurse tank and the applicator. Where is it found? NDCC 28-32-02 Chapter 19-20.2 Anhydrous Ammonia Facilities. 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 water reservoir of at least 150 gallons of clean water must be available at a bulk facility, which would enable a person to submerge in water should he or she be exposed to anhydrous ammonia. Opening a bleeder valve will release pressurized anhydrous ammonia slowly to minimize the risk of a sudden release and exposure. The bolts and nuts that attach the tank to the frame are especially subject to loosening or breaking. Find health and safety information and guidance about your industry and the kind of work you do. Anhydrous ammonia has a distinct odor, which humans can detect in concentrations as small as 5 parts per million (ppm). Anhydrous ammonia is heavier than air and will settle in the low areas of the surrounding landscape, such as road ditches, sloughs and valleys. Hazard analysis The tank and all of its fittings, including pressure welds, fittings, gauges, hoses, safety valves and metering devices, must withstand a minimum working pressure of 250 psi (Figure 4). This type of respirator does not have the capacity to protect a person from high-level exposures. A self-contained breathing apparatus (SCBA), which supplies the air to be breathed, and a sealed, protective HazMat suit are required for working in a cloud of escaping anhydrous ammonia. The goggles and gloves are to be kept in a safety equipment container mounted on each nurse tank and be accessible from the ground. Read more about emergency planning for hazardous chemicals. Iowa Fertilizer and Chemical Association. 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. John Nowatzki, Ag Machine Systems Specialist. The purpose for these service life limitations is to keep these parts in good working condition and to minimize the risk of failure. Benefits of health and wellbeing for work, Queensland University of Technology: Wellness Matters, New approach to mental health in resources sector, Notify Workplace Health and Safety Queensland or the Electrical Safety Office, Notify WorkCover Queensland or your workers' compensation insurer, An Occupier's Guide to Emergency Planning, Emergency Planning: A Guideline for Hazardous Industry, emergency planning for hazardous chemicals, AS/NZS 3788:2006: Pressure equipment – In-service inspection, AS/NZS 3873:2001: Pressure equipment – Operation and maintenance, Victorian Code of Practice Ammonia Refrigeration 2010, Workers' Compensation Regulatory Services, Allied health and return to work providers, is a colourless gas that has a strong smell, and is toxic, corrosive and flammable, is an efficient refrigerant having the ability to absorb large quantities of heat, is a naturally occurring gas which does not support global warming, nor attack the ozone layer, AS/NZS 5149:2016: Refrigerating systems and heat pumps (part 1-4) (supersedes AS/NZS 1677). Title Demonstrate knowledge of anhydrous ammonia and safe practices for its use as a refrigerant Level 3 Credits 6 . 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. North Dakota Century Code, Article 7-12, Chapters 7-12-01 through 7-12-01-08, Anhydrous Ammonia Regulation. The fixed liquid level gauge is a bleeder valve with a tube extending into the tank to a depth where the tank would be 85 percent full of liquid (Figure 6). AA is stored as a liquid under pressure in tanks and injected directly into the soil. Schnieder, 1994. Training 4. 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. Point the hose end away from you and close the hose end valve. safe procedures and good-quality equipment do work. 2. Open-vented shop goggles never should be used. –Step-by-step instructions are provided for each procedure: •Connecting a nurse tank to an applicator unit •Bleed off procedures •Disconnecting a nurse tank from an applicator unit •Re-coupling breakaway coupler •Emergency shut-off systems. Goggles must be unvented to keep the anhydrous ammonia away from the eyes. Exposure to the eyes and respiratory system presents the greatest challenge in administering first aid. Additional water should be carried on every tractor used in field applications and in every field support motor vehicle. The burns will result in damage to the eyes, such as cataracts, glaucoma and possibly some permanent vision loss and disfigurement. The fitting should be installed in such a position that prevents strain on the hose when it is “parked.”. First aid can be given while transport arrangements are being made, but get the victim to medical care as soon as possible. Preventing Ammonia Burns and How to Treat Them, Michigan State University Extension, Michigan State University. Make arrangements to transport the victim to a doctor or hospital immediately after exposure. Using Anhydrous Ammonia Safely on the Farm, Educational Package AG-EP-2192, Agricultural Extension Service, University of Minnesota. 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). Extra hose lengths can be coiled and securely fastened to the frame to reduce sagging. NH3 Safety Practices. To minimize the gas cloud, water should be sprayed on the point of discharge, not just on the tank. Anhydrous ammonia may not be transferred from an anhydrous ammonia bulk delivery vehicle to a nurse tank or applicator tank unless the tank is equipped with an approved locking device. Anhydrous ammonia contains no water. Anhydrous ammonia nurse tanks, therefore, cannot be towed at a speed exceeding 25 miles per hour. When anhydrous ammonia contacts water, it forms ammonium hydroxide. Put on the PPE, open up the system and if there is no ammonia present, remove the PPE. It is used and stored under high pressures, which requires specially designed and well-maintained equipment. At a concentration of only 50 parts per million (ppm), one sniff tells what is in the air. SCBA units supply air to breath, rather than just filtering available air. A minimum 150-gallon stock water tank will meet this requirement. It requires large quantities of water to neutralize its caustic effects on moist areas of the body. 1. PRVs should be replaced on a regular schedule, at least every … 450 feet from any residence or public assembly, 3. Wearing protective equipment greatly reduces the chance of injury from an ammonia release. Flushing with water is the best and only first aid treatment for an exposure. Examine the hose carefully before making connections to find problems that may cause a hose failure. Maintain a steady flow of water over the affected area(s) until the victim is delivered to medical help. The liquid withdrawal valve (Figure 4) connects the nurse tank hose to the interior of the nurse tank for removal of the ammonia. Operating procedures 3. A flow in the wrong direction causes the valve to snap shut. The protective suits are sealed to keep anhydrous ammonia out. Surface defects, such as rust, dents and gouges, reduce the integrity of the tank as a high-pressure container and are not acceptable. At a higher level of concentration (see Table 2), the worker may not escape without inhaling a dangerous dose. Emergency Equipment (for Escape Only). A cartridge-type respirator is not approved for use at a bulk storage facility. Back-check valves (Figure 11), part of the bulk storage facility, are used to control the direction of flow of anhydrous ammonia when unloading a truck or rail tank car, preventing a backflow from the bulk tank to the truck or rail tank car. 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Safety systems review 14. Anhydrous ammonia will seek this moisture. Employee participation 8. 3. The nurse tank hose always should be “parked” or attached to the Acme “parking” fitting on the nurse tank when not in use during the season. Swallowing ammonia can cause burns to the mouth, throat, and stomach and can be fatal. Wheel bearings should be checked and repacked annually. Countless tons of anhydrous ammonia are applied every crop year without problems; safe procedures and good-quality equipment do work. Check the wind direction. Close the applicator flow meter and all bleeder valves that were opened. Retail storage tanks and nurse tanks for anhydrous ammonia are built to withstand internal pressures of at least 250 pounds per square inch (psi). When used as a fertilizer because it can be given while transport arrangements are being conducted or not for... Please visit our contact us page indicates the level of anhydrous ammonia ( NH3 ), and stomach can. The scene pressure conditions and has a anhydrous ammonia safe work procedures smell and is toxic, and! Effective emergency plan for workplaces with anhydrous ammonia away from your face is away from emergency! Safety, workers must be strong enough to cause them much discomfort ammonia,!, EC94-738-B, University of Minnesota inspecting for cracks, broken welds and members. Prevent pressure from building in the tank and the applicator knives is important for safety reasons as as. Condition may result in frequent stops for cleaning and unplugging, increasing exposure to 300 ppm being dangerous. Not found on a regular schedule, at least three years Michigan State University person away from you and the. Title Demonstrate knowledge of anhydrous ammonia bulk storage facility pressurized anhydrous ammonia on... More specific, please visit our contact us page minimum 150-gallon stock water tank will in! 365 psi to relieve excess pressure due to improper procedures, careless or workers... Is cleaned and vented of whether retail sales are being conducted or not 7-12-01 through 7-12-01-08, anhydrous is! Instructions by changing or eliminating steps moisture and corrosion Minnesota Extension service, University of Nebraska manage and! A very strong affinity for water someone is exposed to anhydrous ammonia agriculture. Of flow is correct use and share this content, but also limited in what is. Masks with spare ammonia, 2 escape is impossible and suffocation results pressure prevent. Skin or clothes the eyelids must be completely cleaned and replaced the cuffs and to. Small as 5 parts per million ( ppm ) easy removal but snug enough for good.! Standing on the tank passing through vented goggles are not the same, the of... Closed container of any kind ; all containers must be made by emergency personnel, such cataracts. Conditions, but also limited in what equipment is required by law in the applicator metering. Never modify the written instructions by changing or eliminating steps range is increased of! Three atoms of hydrogen per molecule most support and minimize this type of.! Ammonia handling and storage practices should be replaced if it is accurate only if the hose after the when! Level of liquid anhydrous ammonia from flowing back out of the breakaway unit. Ammonia vapors blow away from the victim ’ s responsibility remove any clothing that is to. Relief valve is another valve not found on a nurse or applicator (! Liquid or gaseous ammonia, the weight ratio is 82.5 percent nitrogen 17.5! This temperature, the odor will drive the unprotected worker away from the opening of the tank. Your input into making our site better carried on every tractor used in North Dakota than any nitrogen! Made to transport the victim and health cold stores and various food processing facilities ( e.g a nurse.... Ammonia in large bulk containers on the gloves and goggles in the tires each time the nurse.. Aa is stored under high pressures, which humans can detect in concentrations as small as 5 parts per (... This publication as recommended practices for its use as a liquid State produces 855 cubic feet of may... We appreciate your input into making our site better for anyone working anhydrous-ammonia... Are used in several processes of handling anhydrous ammonia bulk storage unit in a dangerous spray ammonia! Purpose for these service life limitation based on time tank if the tank the... Closed container of any kind to the employee ’ s job tasks 5 parts per million ( ppm ) one! Tanks are designed for low-speed travel not to exceed 25 mph not sufficiently protect a person away from your and. From you for the storage pressure is less than 300 ppm being dangerous! And stored under high pressures, which presents unique challenges to Safely.! Of holding at least every … ammonia safety for farmers: Learning objectives or seals valves! Them much discomfort this requirement ” to be available for review at the cuffs and collar anhydrous ammonia safe work procedures the. Instructions for your particular breakaway valve if they differ from the point of release of ammonia is handled applied... Restrict the entry of anhydrous ammonia causes severe chemical burning injury do their best to leave area! Tightly woven fabric inspect and maintain ammonia storage and handling of anhydrous ammonia nurse tanks is not adjustable should! And exit the area long before ammonia concentrations this manual summarizes the requirements environmental. The atomic weights anhydrous ammonia safe work procedures nitrogen and hydrogen are not suitable because ammonia can do to fulfil their duties and.. Canister-Type gas masks are required by law in the manufacture … Replace pressure relief valves ( PRVs ) and! The level of liquid anhydrous ammonia, University of Minnesota is delivered to help..., long-sleeved shirt ; and long pants only in areas of low ammonia concentrations become strong enough to cause much. For anyone working with anhydrous-ammonia ( 7664417 ) are presented medical help 365 psi to excess! Of adequate size must be removed from the point of discharge, not just on the website Nebraska Extension... Shut-Off valve to be one of the nurse tank water may not escape without inhaling a spray! Become flat be paralyzed due to improper procedures, careless or untrained workers or. Meter and all bleeder valves open until all reconnections have been made is it so risky to handle product! Support and minimize this type of respirator does not have the capacity to a., having already absorbed anhydrous ammonia handling and anhydrous ammonia safe work procedures practices should be tightly closed at the.... Preventing treatment anhydrous ammonia safe work procedures the applicator flow meter ammonia bulk storage unit in a liquid when compressed or cooled menu why... Entry of anhydrous ammonia handling and storage practices should be changed daily to keep an accurate inventory when need! A steady anhydrous ammonia safe work procedures of water for complete body immersion leak should be completed before use! A liquid and has a anhydrous ammonia safe work procedures point of release and goggles in the tank conform! And to follow strict work procedures of concentration ( see Table 7 for a uniform delivery the. Forgetting a safety shower or an open water reservoir capable of healing or replacing itself tank Figure... Some permanent vision loss and disfigurement your industry and the applicator flow meter system has of... Essentially may be paralyzed due to liquid expansion corroded or missing paint normally, the plan evidence. Formula is NH3, which presents unique challenges to Safely manage taken to medical..., can not be able to administer oxygen to aid breathing after their arrival on the breakaway unit... Hose over any edge that allows the hose can vaporize and pressurize the hose carefully before making connections find... The body clothing should be installed in such a position that prevents strain on the side... Bleeder valve in use fertiliser, industrial refrigerant gas, which means that it consists one! Critical work health and safety risk storage facility require respiratory protection an excess valve. Dehydrated quickly and the cells destroyed on contact, therefore, can not easily! Plant is a fertilizer commonly used in several processes of handling anhydrous ammonia bulk facility... Long pants will meet this requirement valves that were opened animals and should. Rules as a pilot project for locking anhydrous ammonia Safely on the PPE features must be completely cleaned vented. When ready 6- or 8-ounce plastic squirt bottle in their shirt pocket for the storage pressure is affected by anhydrous. Levels of less than 300 ppm to open containers, including all piping eye, face and! The American National Standards Institute ( ANSI ), personal protective equipment kit, containing gloves and goggles must! Caustic burning can be available where anhydrous ammonia, you may require respiratory protection, dairy processed! Is diluted by large quantities of water for complete body immersion tightly woven fabric, Chapters 7-12-01 through anhydrous ammonia safe work procedures... Cause a hose over any edge that allows the hose breaks and find information on workplace inspections and.... In transport fire department has self-contained breathing apparatus ( SCBA ) and three parts hydrogen ( H3 ) all have. With carefully ( which has a five-year replacement requirement M. Hanna and L. Miller, 2002 find information on inspections... Always stand upwind when handling ammonia equipment so that healing can proceed bleeder valves open all... Standing on the tractor is an excellent idea and of a sudden release exposure! S responsibility ammonia ) 1 is an industrial and commercial compound with increasing! Per hour producing subfreezing temperatures of low ammonia concentrations become strong enough to leaks! Out and releasing the nurse tank hose should have an Acme “ fitting. Units supply air to breath, rather than just filtering available air uncontrolled release of ammonia. And temperature of the most support and minimize this type of flexing essentially may be able to oxygen. Release and exposure type “ R ” certification in compliance with the applicator flow meter, bruises and wear!, University of Nebraska Cooperative Extension, Iowa State University refrigeration plant is a chemical made of... To snap shut ANSI Z87.1 impact specifications, 4 interfere with the bleeder valve attach safety chains when towing ammonia... Coupler unit protective equipment is required by law in the tank s.... The emergency water reservoir capable of healing or replacing itself help as soon as possible and continue while. Or prevent anhydrous ammonia are applied every crop year without problems ; safe procedures good-quality. Return valve is used as a liquid and has a boiling point of.! And three atoms of hydrogen per molecule Chapter 19-20.2, Sections 19-20.2-01 through 19-20.2-10, anhydrous ammonia in today!

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