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2703.2 Devices, Equipment, Systems and Processes
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Devices, equipment, systems and processes utilized for storage, handling and use of hazardous materials shall be in accordance with FC 2703.2.1 through 2703.2.8 and the regulations of the New York State Department of Environmental Conservation as set forth in 6 NYCRR Parts 596, 598, 599, 612, 613 and 614.
Containers and tanks shall be designed and constructed in accordance with approved standards. Containers, tanks and other means used for containment of hazardous materials shall be of an approved type.
Piping, tubing, valves and fittings conveying hazardous materials, except piping for inlet connections to prevent backflow or piping for pressure relief devices, shall be designed and installed in accordance with approved standards and FC 2703.2.2.1 and 2703.2.2.2.
Piping, tubing, valves, fittings and ancillary equipment used for hazardous materials shall be in accordance with the following:
- Piping, tubing, valves, fittings and ancillary equipment shall be designed and fabricated from materials compatible with the material to be contained and shall be of adequate strength and durability to withstand the pressure, structural and seismic stress, and exposure to which they are subjected.
- Piping and tubing shall be identified in accordance with ASME A13.1 to indicate the material conveyed.
- Readily accessible manual valves, or automatic remotely-activated fail-safe emergency shutoff valves, shall be installed on supply piping and tubing at the point of use and at the tank, container or other source of supply.
- Emergency shutoff valves shall be clearly visible and readily accessible. A durable sign shall be conspicuously posted immediately adjacent to such valves that identifies their location.
- Backflow prevention or check valves shall be provided when the backflow of hazardous materials could create a hazardous condition or cause the unauthorized discharge of hazardous materials.
- Where gases or liquids having a hazard ranking of health hazard Class 3 or 4, flammability Class 4, or instability Class 3 or 4 in accordance with NFPA 704 are conveyed in pressurized piping above 15 pounds per square inch gauge (psig) (103 kPa), an approved means of leak detection and emergency shutoff or excess flow control shall be provided. Where the piping originates from within a hazardous material storage room or area, the excess flow control shall be located within the storage room or area. Where the piping originates from any other source of supply, the excess flow control shall be located as close to the source of supply as practical.
- Piping for inlet connections designed to prevent backflow.
- Piping for pressure relief devices.
Supply piping and tubing for gases and liquids having a health-hazard ranking of 3 or 4 in accordance with NFPA 704 shall be in accordance with ASME B31.3 and the following:
- Piping and tubing utilized for the transmission of highly toxic, toxic or highly volatile corrosive liquids and gases shall have welded, threaded or flanged connections throughout, except where connections are located within a ventilated enclosure if the material is a gas, or an approved method of drainage or containment is provided for connections if the material is a liquid.
- Piping and tubing shall not be located within corridors, within any portion of a means of egress required to be enclosed in fire-resistance-rated construction or in concealed spaces in areas not classified as Group H occupancies.
Devices, equipment and systems, including required detection and alarm systems, installed or used in conjunction with the storage, handling and use of hazardous materials shall be listed or approved.
Installation of tanks shall be in accordance with FC 2703.2.4.1 through 2703.2.4.3 and with the regulations of the New York State Department of Environmental Conservation as set forth in 6 NYCRR Sections 599.6, 614.7 and 614.13.
Underground tanks used for the storage of liquid hazardous materials shall be provided with secondary containment.
Aboveground stationary tanks used for the storage of liquid hazardous materials shall be located and protected in compliance with the requirements for outdoor storage of the particular material involved.
Hazardous material storage tanks located in areas of special flood hazard or on the premises of Group I-2 occupancies that are hospitals located in shaded X-Zones (as defined in Section G201.2 of the Building Code) shall comply with Section G307.5 of Appendix G of the Building Code.
Empty containers and tanks previously used for the storage of hazardous materials shall be free from residual material and vapor in compliance with the requirements of DOTn, the Resource Conservation and Recovery Act (RCRA) or other governmental agencies having jurisdiction, or shall be stored, handled and used in compliance with the requirements of this code.
In addition to the requirements of FC2703.2.3, all devices, equipment and systems used in conjunction with hazardous materials, including tanks, and detection and alarm systems, shall be maintained in good working order. Defective devices, equipment and systems shall be removed from service and repaired or replaced, or disposed of lawfully.
Stationary tanks not used for a period of 30 calendar days or more shall be properly safeguarded or removed in an approved manner. Such tanks shall have the fill line, gauge opening and pump connection secured against tampering. Vent lines shall be properly maintained. Stationary tanks containing flammable and combustible liquid out of service for a period of 30 calendar days or more shall additionally comply with the requirements of FC3404.2.13.
Tanks that are returned to service shall be tested in an approved manner prior to use.
Atmospheric tanks that contain hazardous material liquids shall be equipped with a liquid-level limit control or other approved means to prevent overfilling of the tank.
Exception: Tanks with a capacity not exceeding 500 gallons (1893 L) that are filled from a source other than a cargo tank or tank car.
Exception: Tanks with a capacity not exceeding 500 gallons (1893 L) that are filled from a source other than a cargo tank or tank car.
Machinery and equipment utilizing hazardous materials shall be braced and anchored in accordance with the seismic design requirements of the Building Code for the seismic design category in which the machinery or equipment is classified.
The following devices, equipment and systems shall be tested at the time of installation and not less than annually thereafter, provided that testing shall be conducted at least as often as is recommended by the manufacturer of such device, equipment or system:
- Gas detection systems, alarms and automatic emergency shutoff valves required by FC3704.2.2.10 for highly toxic and toxic gases.
- Limit control systems for liquid level, temperature and pressure required by FC 2703.2.7, 2704.8 and 2705.1.4.
- Emergency alarm systems required by FC 2704.9 and 2705.4.4.
- Monitoring and supervisory systems required by FC 2704.10 and 2705.1.6.
- Manually activated shutdown controls required by FC4103.1.1.1 for compressed gas systems conveying pyrophoric gases.
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