California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 7 - General Industry Safety Orders
Group 20 - Flammable Liquids, Gases and Vapors
Article 139 - Oxygen
Section 5502 - Distance Between Bulk Oxygen Systems and Exposures
Universal Citation: 8 CA Code of Regs 5502
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a) Except as provided in (15), the minimum distance from any bulk oxygen storage container to exposures, measured in the most direct line (except as indicated in (5), shall be as indicated in (1) to (15) inclusive.
(1) 50 feet from buildings of
wood frame construction.
(2) Not
less than one foot (or other distance to permit system maintenance) from
buildings of other than wood frame construction, including fire resistive,
heavy timber, noncombustible, and ordinary construction.
(3) At least 10 feet from any opening in
walls of adjacent structures. This provision shall apply to all elements of a
bulk oxygen system where the oxygen storage is high pressure gas. Where the
storage is as liquid, this provision shall apply to only pressure regulators,
safety devices, vaporizers, manifolds, and interconnecting piping.
(4) Flammable and Combustible Liquid Storage
Aboveground:
Distance (feet) | Capacity (gallons) |
25 | 1000 or less |
50 | 1001 or more |
(5) Flammable and Combustible Liquid Storage
Belowground:
Distance Measured Horizontally | Distance from Oxygen Storage |
from Oxygen Storage Container | Container to Filling and Vent |
to Tank (feet) | Connections or Openings to Tank (feet) |
15 | 25 |
(6) 25 feet from quantities of flammable
gases not exceeding 1,000 gallons of liquefied gases, or 25,000 cubic feet NTP
for nonliquefied or dissolved gases. For quantities in excess of these, the
distance shall be 50 feet.
(7) 50
feet from solid materials which burn rapidly, such as excelsior or
paper.
(8) 25 feet from solid
materials which burn slowly, such as coal and heavy timber.
(9) 75 feet in one direction and 35 feet in
approximately 90 direction from confining walls (not including fire walls less
than 20 feet high) to provide adequate ventilation in courtyards and similar
confining areas.
(10) 25 feet from
congested areas such as offices, lunchrooms, locker rooms, time clock areas,
and similar locations where employees may congregate.
(11) 50 feet from places of public
assembly.
(12) 50 feet from areas
occupied by nonambulatory patients.
(13) 10 feet from any public sidewalk or
parked vehicles.
(14) 5 feet from
any line of adjoining property which may be built upon.
(15) The distances in (1), (4) to (8)
inclusive, (13), and (14) do not apply where protective structures, such as
fire walls or insulated liquid oxygen storage containers, interrupt the
line-of-sight between uninsulated portions of the bulk oxygen storage
installation and the exposure. In such cases, the uninsulated bulk oxygen
installation shall be a minimum distance of 1 foot (or greater distance if
required for system maintenance) from the protective structure. (Title 24, Part
6, Section T8-5502)
1.
Amendment of subsection (a)(15) filed 12-19-78; effective thirtieth day
thereafter (Register 79, No. 1).
2. Amendment of subsection (a)(10)
filed 9-19-80; effective thirtieth day thereafter (Register 80, No.
38).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
Disclaimer: These regulations may not be the most recent version. California may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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