The document shall set forth the test bases, test data and results, and also the qualifications of the certifying person. The Gibson Plant has a 3,000 acre impounded lake in which the ammonia tank farm sits. To minimize the gas cloud, water should be sprayed on the point of discharge, not just on the tank. Open the applicator flow meter shut-off valve to prevent pressure from building in the applicator flow meter system. Light weight, thin fabrics will not slow down or prevent anhydrous ammonia from passing through.
Describe whether, and to what extent, the collection of information involves the use of automated, electronic, mechanical, or other technological collection techniques or other forms of information technology, e. The condenser shall be designed for at least 250 p. Tanks should be mounted on concrete, masonry or structural steel supports and on firm concrete or masonry foundations. Terminal storage tanks refrigerate ammonia to minus 28 degrees Fahrenheit. If a metal dome is used, the relief valve shall be properly vented through the dome. But Hankins says that is not always the case.
It has an excess flow valve preventing anhydrous ammonia from flowing back out of the nurse tank if the hose breaks. A of 1,000 pounds of water capacity or less constructed in accordance with Department of Transportation specifications. Retail storage tanks and nurse tanks for anhydrous ammonia are built to withstand internal pressures of at least 250 pounds per square inch psi. Storage tanks are available in a variety of sizes depending on individual requirements. Keep the informative decals on the equipment up to date.
Costs under this item for complying with these provisions are included under those costs in Item 12. Storing anhydrous ammonia in large bulk containers on the farm presents hazards similar to storage at commercial installations. Loading and unloading systems shall be protected by suitable devices to prevent emptying of the storage container or the container being loaded or unloaded in the event of severance of the hose. A visual inspection should be completed before each use. Dirty water may not flow through the reservoir hose, preventing treatment of the exposure. Excess flow and back pressure check valves where required by the standards in this section shall be located inside of the container or at a point outside as close as practicable to where the line enters the container. The shall be subjected to a pressure retest and if rerating is necessary, rerating shall be in accordance with applicable requirements.
Pressure gages of bourdon-tube type shall be installed on the suction and discharge of the compressor before the shutoff valves. Do not confuse this gauge with the pressure gauge. Identify any legal or administrative requirements that necessitate the collection. Introduction More anhydrous ammonia is used as fertilizer in North Dakota than any other nitrogen fertilizer source. Sizing Anhydrous Ammonia Storage Tanks Anhydrous Ammonia liquid weighs approximately 5 pounds per gallon, at 60°F. Normally, the odor will drive a person away from the area. Pressure for Storage Anhydrous ammonia is a liquid when compressed or cooled.
When portable tank are in lieu of cargo tanks and are permanently mounted on tank motor vehicles for the transportation of ammonia, they shall comply with the requirements of this paragraph. Aqueous ammonia is considered to be safer since it is not 99. In the latter case installation shall be made in such manner that any undue strain beyond the excess flow or back pressure check valve will not cause breakage between the container and the valve. They will protect you only in areas of low ammonia concentrations. Play it Safe with Anhydrous Ammonia, University Extension, Iowa State University. Bleeder valves are used in several processes of handling anhydrous ammonia. Protective Equipment for Anhydrous Ammonia Due to the seriousness of exposure to anhydrous ammonia, personal protective equipment must be well-maintained.
The valve opens directly to the atmosphere when the tank reaches 250 to 265 psi and closes when the interior pressure drops below 250 psi. Indicate expected response rates for the collection as a whole. Failure to close any of these valves may result in a dangerous spray of ammonia. They shall be equipped with shutoff valves having metallic handwheels, with excess-flow valves, and with extra heavy glass adequately protected with a metal housing applied by the gage manufacturer. The victim always should be taken to professional medical help as soon as possible. It takes excessive temperatures about 840° to 930°F to cause it to dissociate slightly at atmospheric pressure.
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. The replacement date is stamped on the coupler. Size of discharge lines from safety valves shall not be smaller than the nominal size of the safety-relief valve outlet connection. Provide estimates of annualized cost to the Federal government. The roll cage protects gauges and valves if the nurse tank rolls over. Do not include the cost of any hour burden shown in Items 12 and 14. Farm Transfer Facilities Agricultural producers can transfer anhydrous ammonia only from cargo tanks to nurse tanks when the following safety requirements are met: 1.
These forms must be on record for at least three years and available for review at the facility during normal business hours. Only steel or ductile iron should be used for ammonia containers, valves, fittings and piping. Leave the system open until the screen is cleaned and replaced. It is used and stored under high pressures, which requires specially designed and well-maintained equipment. No excess flow valve is required in the liquid withdrawal line provided the controlling orifice between the contents of the container and the outlet of the shutoff valve does not exceed seven-sixteenths inch in diameter. The tank is equipped with a dual safety relief valve system consisting of two safety relief valves mounted on a three-way valve.
At this temperature, ammonia freeze-burns human skin on contact. Your Alert Profile lists the documents that will be monitored. The vent lines shall be installed to prevent accumulation of liquid in the lines. Regulating equipment not so installed shall be flexibly connected to the container shutoff valve. For in concentrated ammonia atmospheres, a is required. Recommended Sources of Information on Anhydrous Ammonia Notice: We believe the information contained here to be accurate and reliable; however, Tanner Industries, Inc.