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Safety, Storage & Security Cabinet Regulations

Key excerpts of pertinent Codes and Regulations

OSHA 29 CFR 1910.106(e)(2)(ii)(b): www.osha.gov 
Incidental storage or use of flammable and combustible liquids. 
(b) The quantity of liquid that may be located outside of an inside storage room or storage cabinet in a building or in any one fire area of a building shall not exceed: (1) 25 gallons of Class IA liquids in containers (2) 120 gallons of Class IB, IC, II or III liquids in containers (3) 660 gallons of Class IB, IC, II or III liquids in a single portable tank 

OSHA 29 CFR 1910.106(d)(3)(i&ii): www.osha.gov 
Design, construction, and capacity of storage cabinets - (i) Maximum capacity. Not more than 60 gallons of Class l or Class ll liquids, nor more than 120 gallons of Class lll liquids may be stored in a storage cabinet. 

(ii) Fire resistance. Storage cabinets shall be designed and constructed to limit the internal temperature to not more than 325F. when subjected to a 10-minute fire test using the standard time-temperature curve as set forth in Standard Methods of Fire Tests of Building Construction and Materials, NFPA 251-1969. All joints and seams shall remain tight and the door shall remain securely closed during the fire test. Cabinets shall be labeled in conspicuous lettering, Flammable-Keep Fire Away. (a) Metal cabinets constructed in the following manner shall be deemed to be in compliance. The bottom, top, door, and sides of cabinet shall be at least No. 18 gauge sheet iron and double walled with 11/2 air space. Joints shall be riveted, welded or made tight by some equally effective means. The door shall be provided with a three-point lock, and the door sill shall be raised at least 2 above the bottom of the cabinet.

Uniform Fire Code 79.201**: www.ufca.net 
(g) Storage Cabinets.

1. General.
 When provisions of this code require that liquid containers be stored in storage cabinets, such cabinets and storage shall be in accordance with this section. Cabinets shall be conspicuously labeled in red letters on contrasting background FLAMMABLE - KEEP FIRE AWAY. 

2. Quantities.
 The quantity of Class I or Class II liquids shall not exceed 60 gallons and the total quantities of all liquids in a storage cabinet shall not exceed 120 gallons. 

3. Construction. 
Cabinets may be constructed of wood or metal. Cabinets shall be listed or constructed in accordance with the following: 

A. Unlisted metal cabinets.
 Metal cabinets shall be of steel having a thickness of not less than 0.043. The cabinet, including the door, shall be double walled with 11/2 airspace between the walls. Joints shall be riveted or welded and shall be tight fitting. Doors shall be well fitted, self-closing and equipped with a latching device. The bottom of the cabinet shall be liquid-tight to a height of at least 2. 

NFPA Code 30 - 2003 Edition*: www.nfpa.org 
6.3.4 The storage cabinet shall not be required by this code to be vented for fire protection purposes, and vent openings shall be sealed with the bungs supplied with the cabinet or with bungs specified by the cabinet manufacturer. However, if the storage cabinet is vented for any reason, the cabinet shall be vented directly to outdoors in such a manner that will not compromise the specified performance of the cabinet and in a manner that is acceptable to the authority having jurisdiction. 

NFPA 58 LP Gas Code - 2004 Edition*: www.nfpa.org 
8.4.2 Protection of Cylinders. Cylinders at a location open to the public shall be protected by either of the following: 

(1) An enclosure in accordance with Requires a fence enclosure for areas where cylinders are loaded, unloaded, etc. or 
(2) A lockable ventilated metal locker or rack that prevents tampering with valves and pilferage of the cylinder.

6.4.1 Location of Storage Outside of Buildings Storage outside of buildings for cylinders awaiting use, resale, or part of a cylinder exchange point shall be located as follows: 
(1) At least 5 ft (1.5m) from any doorway or opening in a building frequented by the public where occupants have at least two means of egress as defined by NFPA 101, Life Safety Code. 
(2) At least 10 ft (3m) from any doorway or opening ina building or sections of a building that has only one means of egress 
(3) At least 20ft (6.1m) from any automotive service station fuel dispenser

OSHA 29 CFR1910.110 Liquid Petroleum Gas: www.osha.gov 
Storage within buildings not frequented by the public (such as industrial buildings.) The quantity of LP-gas stored shall not exceed 300 pounds (approximately 2,550 cubic feet in vapor form) 

OSHA 29 CFR1910.253(b)(2) Storage of Cylinders - General www.osha.gov 
(b)(2)(ii) Inside of buildings, cylinders shall be stored in a well-protected, well-ventilated, dry location, at least 20 (6.1m) feet from highly combustible materials such as oil or excelsior. Cylinders should be stored in definitely assigned places away from elevators, stairs, or gangways. Assigned storage spaces shall be located where cylinders will not be knocked over or damaged by passing or falling objects, or subject to tampering by unauthorized persons. Cylinders shall not be kept in unventilated enclosures such as lockers and cupboards. 

 For storage in excess of 2,000 cubic feet (56m(3)) total gas capacity of cylinders or 300 pounds (135.9 kg) of liquefied petroleum gas, a separate room or compartment conforming to the requirements specified in paragraphs (f)(6)(i)(H) and (f)(6)(i)(I) of this section shall be provided, or cylinders shall be kept outside or in a special building. Special buildings, rooms or compartments shall have no open flame for heating or lighting and shall be well ventilated. They may also be used for storage of calcium carbide in quantities not to exceed 600 (271.8 kg) pounds, when contained in metal containers complying with paragraphs (g)(1)(i) and (g)(1)(ii) of this section. 

CSA International B149.2 5.1.7: www.csa-international.org 
The relief valve shall have direct communication at all times with the vapour space of the cylinder. 
CSA International B149.2 

The storage cabinet:
 (iii)wall or top cover material shall be either metal wire of not less than No.9 SWG (3.7 mm), having openings not greater than 2 x 2 in (50 x 50 mm), or sheet metal; (iv) shall be ventilated to the outside air on a minimum of two sides at the top and bottom of the cabinet walls; and (v) shall be securely anchored in an upright position.

NFPA Code 30 - 2003 Edition: www.nfpa.org 
3.3.18 Hazardous Material or Hazardous Chemical. Material presenting dangers beyond the fire problems relating to flash point and boiling point. 

3.3.19 Hazardous Materials Storage Locker.
 A movable prefabricated structure, manufactured primarily at a site other than the final location of the structure and transported completely assembled or in a ready-toassemble package to the final location. It is intended to meet local, state, and federal requirements for outside storage of hazardous materials. 

Section 6.6* Hazardous Materials Storage Lockers. 6.6.2
 Subsections 6.6.3 and 6.6.4 shall apply to storage of flammable and combustible liquids in containers, in hazardous material storage lockers (hereinafter referred to as lockers) that are located outside. 

 The design and construction of a locker shall meet all applicable local, state, and federal regulations and requirements and shall be subject to the approval of the authority having jurisdiction. Movable, prefabricated structures that have been examined, listed, or labeled by an organization acceptable to the authority having jurisdiction for use as a hazardous materials storage facility shall be acceptable.
 Lockers governed by this standard shall not exceed 1500 ft2 (140 m2) gross floor area. Vertical stacking of lockers shall not be permitted. 
Where electrical wiring and equipment is required, it shall comply with
 Where dispensing or filling is permitted inside a locker, operations shall comply with the provisions in Chapter 7.

6. 6.3.4
 Ventilation shall be provided in accordance with
 Lockers shall include a spill containment system to prevent the flow of liquids from the structure under emergency conditions. The containment system shall have sufficient capacity to contain 10 percent of the volume of containers allowed or the volume of the largest container, whichever is greater. 

 Designated sites shall be provided for the location and use of lockers and shall be subject to the approval of the authority having jurisdiction. The designated sites shall be arranged to provide at least the minimum separation distance between individual lockers, distance from locker to property line that is or can be built upon, and distance from locker to nearest side of public ways or to important buildings on the same property, as given in Table 6.6.4 and explanatory notes 1, 2, 3, 4,as applicable.

Table 6.6.4 Designated Sites (1)
Area of Designated Site (2)(ft)
Distance Between Individual Lockers (ft)
Distance From Locker to Property Line That is or Can be Built Upon (3)(ft)
Distance From Locker to Nearest Side of Public Ways or To Important Buildings on Same Property(3,4)
greater/less than 100
greater than 100 less than 500
greater than 500 less than 1500 (5)

For SI units, 1 ft = 0.3 m; 1 ft 2 = 0.09 m 2. ( 1 ) If the locker is provided with a fire resistance rating of not less than 4 hours and deflagration venting is not required in accordance with, all distances required by Table 6.6.4 shall be permitted to be waived. ( 2 ) Site area limits are intended to differentiate the relative size and thus the number of lockers that are permitted in one designated site. ( 3 ) Distances applies to properties that have protection for exposures, as defined. If there are exposures and such protection does not exist, the distances shall be doubled. ( 4 ) When the exposed building has an exterior wall, facing the designated site, that has a fire-resistance rating of at least 2 hrs. and has no openings to above-grade areas within 10 ft (3 m) horizontally and no openings to below-grade areas within 50 ft (15 m) horizontally of the designated area, the distances can be reduced to half of those shown in the table, except they shall never be less than 5 ft (1.5 m). ( 5 ) When a single locker has a gross single story floor area that will require a site area limit of greater than 1500 ft 2 (139 m2) or when multiple units exceed the area limit of 1500 ft 2. (140 m2), the authority having jurisdiction shall be consulted for approval of distances. Once the designated site is approved, it shall not be changed without the approval of the authority having jurisdiction.
 More than one locker shall be permitted on a designated site, provided that separation distance between individual lockers is maintained in accordance with Table 6.6.4.
 Where the approved designated storage site is accesible to the general public, it shall be protected from tampering or trespassing. Storage Practices.
 Containers of liquid in their original shipping packages shall be permitted to be stored either palletized or solid piled. Unpackaged containers shall be permitted to be stored on shelves or directly on the floor of the locker. Containers over 30 gal. (114 L) capacity storing Class I or Class II liquids shall not be stored more than two containers high. In all cases, the storage arrangement shall provide unrestricted access to and egress from the locker.
 No other flammable or combustible materials storage shall be permitted within the designated site approved for lockers. Placarding or warning signs for lockers shall be in accordance with applicable local, state, and federal regulations or with NFPA 704, Standard System for the Identification of the Hazards of Materials for Emergency Response.

The employer shall maintain in the workplace copies of the required material safety data sheets for each hazardous chemical, and shall ensure that they are readily accessible during each work shift to employees when they are in their work area(s). (Electronic access, microfiche, and other alternatives to maintaining paper copies of the material safety data sheets are permitted as long as no barriers to immediate employee access in each workplace are created by such options) 

*Reprinted with permission from NFPA 30 Flammable and Combustible Liquids Code 2003 Edition. Copyright 2003, National Fire Protection Association, Quincy, MA 02269. This reprinted material is not the complete and official position of the National Fire Protection Association, on the referenced subject which is represented only by the standard in its entirety.

*Reprinted with permission from NFPA 58 LP Gas Code 2004 Edition. Copyright 2004, National Fire Protection Association, Quincy, MA 02269. This reprinted material is not the complete and official position of the National Fire Protection Association, on the referenced subject which is represented only by the standard in its entirety.

**Portions of this work are reproduced from the 1997 edition of the Uniform Fire Code, copyright1997, with the permission of the publisher, the International Conference of Building Officials (ICBO). ICBO assumes no responsibility for the accuracy or the completion of summaries provided therein.

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