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ARTICLE VII. ORGANIC PEROXIDES (15-28-340 et seq.)
Organic peroxides in excess of 50 pounds shall be stored in a separate building with walls constructed of materials having a fire-resistive rating of not less than two hours. The floor of such building shall be noncombustible. The roof of such building shall be insulated and constructed of lightweight noncombustible materials and be so installed so as to be freerising in the event of an explosion. Such building shall be one story and without basement. Ventilation shall conform to the requirements of Section 15-28-080. Each such building shall be equipped with a deluge-type automatic sprinkler system. The maximum amount of organic peroxides allowed in any one building shall be 5,000 pounds.
(Prior code § 92-29)
The storage and handling of organic peroxides shall comply with the following provisions:
(1) Quantities in excess of ten pounds and less than 50 pounds shall be stored only in a separate room having a fire-resistive rating of not less than two hours. No other material shall be permitted in such rooms or buildings. Only one such storage room shall be permitted in any building.
(2) Provide means to prevent the exposures of organic materials to the direct rays of the sun. There shall be no source of heat in any storage room.
(3) The storage of organic peroxides shall be permitted only in the original I.C.C. regulated containers. Such materials shall not be repackaged in odd containers or other containers. The containers shall be plainly labeled to avoid misuse of the materials. Such labels shall properly identify, at all times, the trade name, the chemical composition and the net weight or volume of the material in the container. Care should be taken to completely empty the containers. The empty containers shall be immediately removed from the building and properly disposed.
(4) Containers of organic peroxide shall not be opened in the storage area. A special room or the outside area shall be designated for this purpose.
(5) No secondary or loose storage of organic peroxides shall be permitted in the manufacturing area. The organic peroxides brought into such areas shall be limited to that required for immediate use.
(6) When liquid organic peroxides are shipped in containers equipped with specially vented caps, no other type of cap shall be used.
(7) Organic peroxides shall be kept away from all sources of ignition.
(8) All processing equipment shall be properly grounded in conformity with Title 14E. Conductive and spark-resistant floors shall be provided in all manufacturing areas where organic peroxides are used. Conductive safety shoes shall be worn by all operating personnel. All scoops used for weighing the material shall be made of nonsparking materials.
(9) Containers of organic peroxides shall be provided with covers or kept closed.
(10) "NO SMOKING" signs conforming to Section 15-4-940 shall be posted in conspicuous places throughout the storage and manufacturing areas.
(11) Organic peroxides shall not be subjected to any frictional or grinding operation.
(12) Uncontaminated contents of broken or cracked bags, packages or other containers shall be transferred to new and clean containers before storing. Other spilled materials and discarded containers shall be promptly gathered up and destroyed in a safe and proper manner.
(13) Only wiring complying with the requirements of Title 14E shall be permitted. All electric lights shall be protected with suitable guards.
(14) Explosives or blasting agents shall not be permitted in the same building in which organic peroxides are stored or used.
(15) Appropriate warning signs shall be prominently displayed in all buildings where organic peroxides are stored or used. Such signs shall have a white field with red letters four inches high with a one- half-inch stroke and shall read "DANGER – HANDLE WITH CARE".
(16) Internal combustion motor vehicles or lift trucks shall not be parked or stored in the room where such chemicals are stored or used.
(17) Extreme care shall be taken to avoid rough handling or contamination of organic peroxides.
(Prior code § 92-30; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 60)
ARTICLE VIII. POTENTIALLY EXPLOSIVE CHEMICALS (15-28-360 et seq.)
Potentially explosive chemicals buildings or outside storage areas shall have a safety clearance to any building, combustible storage in the open, flammable liquid storage, lot line or public way. Such safety clearances shall be as follows:
Organic peroxides:
Weight (Pounds) | Distance (Feet) |
50 – 100 | 35 |
101 – 500 | 50 |
501 – 1,000 | 65 |
1,001 – 3,000 | 100 |
3,001 – 5,000 | 150 |
In no case shall a safety clearance of less than 500 feet be provided to any lot line of any plot of ground on which is situated a school, hospital or other institutional building, assembly or open air assembly building.
(Prior code § 92-31)
Vehicles carrying potentially explosive chemicals shall comply with Sections 15-24-1150 to 15-24-1210 inclusive. Wherever the phrase flammable liquids is used, it shall mean potentially explosive chemicals and wherever the phrase truck, tank truck, semitank truck, or tank vehicle is used, it shall mean vehicles on which potentially explosive chemicals are transported. The truck shall meet applicable United States Department of Transportation regulations and all requirements of the Municipal Code of Chicago.
(Prior code § 92-31.1; Amend Coun. J. 11-7-22, p. 54984, § 14)
ARTICLE IX. HIGHLY TOXIC MATERIALS (15-28-380 et seq.)
The storage and handling of highly toxic materials other than those used for retail sales in original, sealed containers, shall comply with the requirements for fume hazard gases, flammable liquids or hazardous chemicals, depending upon the nature of the material and shall also comply with the following requirements:
(1) Warning signs shall be conspicuously placed at all entrances to areas where such materials are stored or used. Such signs shall have a white field with red letters at least four inches high and shall have at least a one-half-inch stroke, such signs shall read "HIGHLY TOXIC MATERIALS – HANDLE WITH CARE".
(2) Quantities in excess of one day's supply shall be stored, kept or handled in buildings or rooms conforming to the requirements for fume hazard gases, hazardous chemical or flammable liquids. The user shall notify the fire commissioner by notarized letter of the amount used in one day. Upon any change in that amount, the fire commissioner shall be notified within 24 hours.
(3) There shall be no other flammable liquids, hazardous chemical or other combustible material stored or handled in the same room in which highly toxic materials are stored or handled.
(4) Defective containers which permit leakage or spillage shall be disposed of or repaired in an approved manner. No spilled materials shall be allowed to accumulate on floors or shelves.
(5) Any room required by this section shall be without any drain connected to a house sewer, public sewer or sewage treatment plant.
(6) Tanks, which contain more than 55 gallons of highly toxic materials, shall be located outside of any building or buried below ground level. When aboveground, said tank or tanks containing liquids, shall be diked. Each dike shall have a capacity of not less than one and one-half times the combined capacity of the tank or tanks it surrounds. Dike construction shall be as specified in Section 15-24-170 of this Code; provided, however, the material of the dike walls shall be inert with respect to the materials contained within the tank or tanks.
(7) The provisions of this section shall apply to all existing as well as newly installed tanks. All tanks, piping and fittings shall be compatible with the material to be stored or handled. Outlets and inlets of all aboveground tanks shall have a shutoff valve as close as possible to the tank, with no branches or outlets between the tank and valve. All inlet pipes shall have an additional check valve as close as possible to the tank valve. In addition to any other valves, when the material stored is reactive with air or water, there shall be a valve at each pipeline connection to any tank below the liquid level which valve shall be effective inside the tank shell or head and can be operated manually to prevent the flow of liquid from the tank even though the pipelines are broken from the tank. All remote reach rods to valves shall be of substantial construction and shall be accessibly located and clearly marked "Emergency Shutoff Valve". There shall be an effective flexible connection between that tank valve and piping system or the piping shall be so arranged with swing joints to prevent stress and strain between the piping system and tank. Where the exterior piping and sides of the tank are not inert to the material being stored, the piping, piping supports and tank shall be made inert by coating or some other means to one and one-half times the height of the dike.
(8) Tankers or tank cars of highly toxic materials of any capacity shall not be located within one-eighth mile from any building containing a Group A, E, I, or R occupancy.
(9) Whenever a highly toxic material can be chemically changed to a less dangerous and more stable material, a qualified chemist of the manufacturer shall state in writing the safest and quickest method of changing the total capacity of the tank or tanks in case of a rupture, spillage or other emergency. The owner and/or operator of said tank or tanks shall keep sufficient quantities of the changing agent as hereinbefore determined so as to be readily available in the event of an emergency.
(10) The name and address of the manufacturer or the nearest producer of the specific highly toxic material being used and a placard outlining emergency first aid directions shall be posted and remain posted in a conspicuous place at the points of unloading and use and in at least one other approved location.
Oxygen-generating or self-contained air or oxygen masks having a United States Bureau of Mines or National Institute of Occupational Safety and Health approval for a minimum of one-half hour protection shall be maintained in a readily accessible location, outside the areas of probable contamination and sufficient for all personnel associated with the operation.
Additional air or oxygen containers which will provide for a minimum of one-hour use of each mask shall be kept at the location of each gas mask. All personnel that may be required to use gas masks must be required at reasonable intervals to practice their application and use. Gas masks must be kept in condition, ready for immediate use at all times with fully charged containers.
An approved repair kit with all the necessary tools, appurtenances and material required to repair a leak or replace a defective valve or other part, shall be kept in a location accessible to the tank car and outside the probable area of contamination.
Protective clothing suitable for use with the materials stored shall be provided and be kept in good condition where its use will provide effective protection against the highly toxic material.
Gas masks, repair kit and duplicate wrenches shall be kept in a conspicuous location and shall be conspicuously labeled for immediate identification.
(Prior code § 92-32; Amend Coun. J. 5-18-16, p. 24131, § 155; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 77)
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