Section 215.15  Definitions

"Alteration" means a change in any item described in the original manufacturer’s data report that affects the pressure-containing capability of the container.  Rerating a container by increasing maximum allowable working pressure or by increasing or decreasing allowable working temperature shall be considered an alteration.

"Ammonia or anhydrous ammonia" means the compound formed by the chemical combination of the elements nitrogen and hydrogen in the molar proportion of one part nitrogen to three parts hydrogen.  This relationship is shown by the chemical formula, NH₃.  On a weight basis, the ratio is 14 parts nitrogen to three parts hydrogen or approximately 82% nitrogen to 18% hydrogen.  Ammonia may exist in either gaseous, liquid or solid state.  It is not to be confused with aqua ammonia (ammonium hydroxide) which is a solution of ammonia in water.

"ANSI" refers to American National Standards Institute, 1430 Broadway, New York NY, and their publication "Safety Requirements for the Storage and Handling of Anhydrous Ammonia".

"Approved" means listed by a recognized testing laboratory; or recommended by the manufacturer as suitable for use with anhydrous ammonia and so marked or documented; or accepted by the authority having jurisdiction.

"API-ASME Code" refers to the "Code for Unfired Pressure Vessels for Petroleum Liquids and Gases of the American Petroleum Institute and the American Society of Mechanical Engineers" (API-ASME).  The API-ASME Code, as a joint publication and interpretation service, was discontinued as of December 31, 1956, and construction of containers to the API-ASME Code has not been authorized since July 1, 1961.

"Appurtenance" refers to all devices such as pressure relief devices, liquid level gauging devices, valves, pressure gauges, pressure regulators, fittings, metering or devices designed to be attached to an ammonia container.

"ASME Code" refers to either paragraph U-68, U-69, U-200 or U-201 of Section VIII of the "Boiler and Pressure Vessel Code of the American Society of Mechanical Engineers", 1949 edition, or Section VIII, Division I of the "Boiler and Pressure Vessel Code of the American Society of Mechanical Engineers", 1950 edition through the current edition, including addenda, and applicable Code Case Interpretations.

"ASTM" refers to the "American Society for Testing and Materials", 1916 Race Street, Philadelphia PA 19103.

"Capacity" means the total volume of the container measured in standard U.S. gallons unless otherwise specified.

"Cargo tank" is a bulk packaging that is:

a tank intended primarily for the carriage of liquids or gases and includes appurtenances, reinforcements, fittings and closures;

permanently attached to or forms a part of a motor vehicle, or is not permanently attached to a motor vehicle but which, by reason of its size, construction or attachment to a motor vehicle is loaded or unloaded without being removed from the motor vehicle; and

not fabricated under a specification for cylinders, portable tanks, tank cars or multi-unit tank car tanks.

"Cargo tank motor vehicle" means a motor vehicle with one or more cargo tanks permanently attached to or forming an integral part of the motor vehicle.

"Chemical splash goggles" or "goggles" means flexible fitting chemical-protective goggles with a hooded indirect ventilation system to provide primary protection of the eyes and eye sockets from the splash of hazardous liquids.  Direct vented goggles do not comply with this definition.

"Code" means the Unfired Pressure Vessel Code of the American Society of Mechanical Engineers (Sec. VIII of the ASME Boiler Construction Code), including editions through 1981 or the Joint Code of the American Petroleum Institute and the American Society of Mechanical Engineers (API-ASME Code) including editions through 1981.

"Competent attendant" means a person who has full knowledge of the characteristics of anhydrous ammonia, its safe handling, and safety rules for transfer and application, and has completed an anhydrous ammonia training program conducted by the Department or an equivalent training program approved by the Department.  Refresher training shall be at least every three years and documentation of completed training shall be maintained.

"Container" means all tanks, except cylinders, as defined in Section 215.15, used for the transportation or storage of anhydrous ammonia.

"Cylinder" means a pressure vessel designed for pressures higher than 40 psia and having a circular cross section.  It does not include a portable tank, multi-unit tank car tank, cargo tank or tank car.

"Department" means the Illinois Department of Agriculture, State Fairgrounds, P. O. Box 19281, Springfield IL 62794.

"Design pressure" is identical to the term "Maximum Allowable Working Pressure" used in the ASME Code.

"Emergency shower" means a shower unit permanently connected to a source of clean water that enables the user to have water cascading over the entire body.

"Eye wash unit" means a device used to irrigate and flush the eyes with clean water.  Depending upon the requirements set forth in this standard, the device may be a plumbed unit permanently connected to a source of clean water, or it may be a self-contained unit not permanently installed that must be refilled or replaced after use.

"Filling density" means the percent ratio of the weight of the ammonia permitted in a container to the weight of water at 60°F (15.6°C) that the container will hold when full.  One pound of water = 27.74 cubic inches (455 ml) at 60°F (15.6°C).  For determining the water capacity of the tank in pounds, the weight of one gallon (231 cubic inches) (3.785 L) of water at 60°F (15.6°C) in air shall be 8.328 lb (3.778 kg).

"Gas mask" means an air-purifying device with full face piece approved by NIOSH under the provisions of 30 CFR Part II, Subpart 1, for use in ammonia contaminated atmosphere in compliance with 29 CFR 1910.134 and selected in accordance with ANSI Z88.2, Respiratory Protection.  A gas mask of the air-purifying type must be used only in an atmosphere containing 19.5% to 22.0% oxygen by volume.

"Hydrostatic relief valve" means a pressure relief device for liquid service designed to prevent excessive pressure due to thermal expansion when a pipe or hose is filled with liquid such as between block valves or blinds.

"Immediately Dangerous to Life or Health (IDLH)" means the maximum concentration from which unprotected persons are able to escape within 30 minutes without escape-impairing symptoms or irreversible health effects.  The IDLH for ammonia is 300 ppm by volume in accordance with the NIOSH Pocket Guide to Chemical Hazards.

"Implement of husbandry" means a farm wagon-type tank vehicle of not over 3000 gallons capacity, used as a nurse tank supplying the anhydrous ammonia to a field applicator, and moved on highways only for transporting anhydrous ammonia from a local source of supply to farms or fields or from one farm or field to another.

"Institutional occupancy" means a location where people may be unable to vacate voluntarily and shall be deemed to include nursing homes, hospitals, jails, schools and recreational parks.

"Material suitable for use" includes iron, steel and certain non-ferrous alloys that are compatible for use in anhydrous ammonia service.  Copper, brass, zinc and certain alloys, especially those containing copper, are not suitable for anhydrous ammonia service.

"National Board Inspection Code" refers to the manual published by the National Board of Boiler and Pressure Vessel Inspectors that provides the rules and guidelines for inspection by a commissioned inspector of the repair, alteration and rerating of containers after being placed into service.

"Permanent storage installation" means a system employing a stationary (fixed) container used exclusively for storage or supply.

"Positive pressure self-contaminated breathing apparatus (SCBA)" means a full face piece respirator approved by NIOSH/MSHA for respiratory protection for both entry into or escape from oxygen-deficient atmospheres or a concentration of gases or vapors that are immediately dangerous to life or health where the supply of air is carried by the wearer.  The air pressure inside the face piece is positive in relation to the air pressure of the outside atmosphere during exhalation and inhalation.

"Pressure relief valve" is a device designed to open to prevent an increase in internal vapor pressure in excess of a specified value due to an emergency or abnormal condition and to close and prevent further flow after normal conditions have been restored.

"Private assembly" means a location where people gather together but is not generally open to the public.

"Protective gloves, boots and suits" are items made of rubber or other material impervious to ammonia.  Gloves refer to gauntlet-style of sufficient length to allow for cuffing and that provide thermal protection suitable for ammonia exposure.

"psia" means pounds per square inch absolute.

"psig" means pounds per square inch gauge.

"Public assembly" is a location that is generally open to the public and where people gather together, including but not limited to churches, public halls, libraries, clubs and businesses.

"Repair" means the work necessary to restore a container, cylinder or system to a safe and satisfactory operating condition provided there is, in all cases, no deviation from the original design.  Repairs include the addition or replacement of pressure nonpressure parts, which do not change the design temperature or pressure of the container, cylinder or system.

"System" means an assembly of equipment consisting essentially of the containers, hoses, appurtenances, pumps, compressors and interconnecting piping.

"Tank" means a vessel designed and constructed for the storage and handling of anhydrous ammonia.

"Transportation regulations" refers to the Hazardous Materials Transportation Regulations of the Federal USDOT.  (See the "Code of Federal Regulations", 49 CFR 100-180, Transportation, including "Specifications for Shipping Containers").

"Wet hose" is an anhydrous hose with shutoff valves at each end that is capable of containing liquid product at all times.

(Source:  Amended at 27 Ill. Reg. 9922, effective July 1, 2003)