Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › General Industry Safety Standards › Part 12 - WELDING AND CUTTING › CYLINDERS › Section R. 408.11222 - Storage

Current through Vol. 24-12, July 15, 2024
Rule 1222.
(1)
						An oxygen cylinder shall be stored not less than 20 feet from fuel gas
						cylinders or a highly combustible material, such as, but not limited to, oil,
						grease, excelsior, flammable gas, or a source of ignition, or shall be
						separated from the material by a noncombustible wall, not less than 5 feet (1.6
						meters) high, having a fire-resistance rating of 1/2 hour. An oxygen cylinder
						shall not be stored in an acetylene generator compartment.
The underwriters' laboratory fire resistance directory
						  may be used as a guide to determine fire resistance, as adopted in
						  R
						  408.11202.
(2) A cylinder shall be stored away from heat
						in excess of 125 degrees Fahrenheit.
(3) A cylinder, including an empty cylinder,
						which is in storage, being shipped, or has the regulator removed shall have the
						cap secured in place, if a cap is provided in the design, or shall be otherwise
						protected.
(4) Storage shall be set
						up to ensure first-in, first-out usage.
(5) A cylinder storage area shall be posted
						with the names of the individual gases stocked, and a warning shall be posted
						against tampering by an unauthorized employee. An assigned storage area shall
						be located where a cylinder will not be knocked over or struck by a passing or
						falling object.
(6) Where different
						gases are stored, they shall be grouped by types. Groupings shall separate the
						flammable gases from the oxidizing gases as in subrule (1) of this
						rule.
(7) A storage area for
						cylinders shall be well ventilated. A cylinder shall not be stored in basements
						or pits, except where ventilation as specified by the Michigan Occupational
						Safety and Health Administration (MIOSHA) standards is furnished to keep the
						area purged of any accumulation of gases.
(8) Storage of fuel gas in a building in 1
						area within 100 feet (30 meters) of another fuel gas storage area and not
						protected by an automatic sprinkler system shall be limited to a total gas
						capacity of 2,000 cubic feet (56 cubic meters approximately) or 11.8 cubic feet
						(.33 cubic meters) of liquefied gas, which is 735 pounds (333 kilograms) water
						capacity. Storage in excess of this amount shall be in a separate room or
						compartment with an exterior wall and on the top floor of the building,
						outside, or in a special building. All walls, floors, and ceilings shall be
						constructed of noncombustible material having a fire-resistance rating of 1
						hour. The walls shall be continuous from the floor to the ceiling and shall be
						securely anchored. The separate room, compartment, or special building shall
						have no open flame for heat or light and shall be well ventilated. Openings
						from the separate storage room to other parts of the building shall be
						protected by a self-closing fire door for a class B opening and shall have a
						fire-resistance rating of not less than 1 hour. Windows in partitions shall be
						wired glass and approved metal frames with a fixed sash. Installation shall be
						in accordance with NFPA 80 "Standard for the Installation of Fire Doors and
						Windows," 1974 edition, as adopted in
						R
						408.11202.
(9) Where a liquid or gaseous oxygen system
						is used to supply gaseous oxygen for welding and cutting and the system has a
						storage capacity of more than 20,000 cubic feet (560 cubic meters), measured at
						14.7 psia (101.34 kPa) and 70 degrees Fahrenheit (21.1 degrees Celsius),
						including unconnected reserves at the site, the system shall be as prescribed
						in NFPA 50 "Bulk Oxygen Systems," 1971 edition, as adopted in
						R
						408.11202.
(10) A cylinder used for
						methylacetylene-propadiene, stabilized, shall be constructed of materials
						suitable for this fuel gas in the gaseous or liquid phases.