California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 15 - Petroleum Safety Orders-Refining, Transportation and Handling
Article 23 - Laboratories and Pilot Plants
Section 6886 - Laboratories and Pilot Plants

(a) Fired experimental equipment, fired pilot plant units, and unfired equipment which is a part of, and adjacent to, such experimental or pilot plant units, shall be located in an open area or enclosure isolated from unrelated gas or flammable liquid processing equipment. This shall not preclude the temporary use of operating equipment for experimental or pilot plant purposes when protection equivalent to isolation is provided. "Experimental equipment," for the purpose of this subsection, shall not include equipment used in routine testing or analysis.

(b) Safe access shall be provided to elevated parts of equipment where employees are required to perform work.

(c) Containers of samples, stocks, or cuts of flammable liquids required for current activities shall be kept in a designated place isolated from sources of ignition, and shall be marked or labeled to identify them as flammable liquids.

(d) A separate area shall be provided for the storage of petroleum samples. Samples of flammable liquids not required for current use, but which must be preserved, shall be stored in such a separate area.

(e) Flammable liquid samples shall be disposed of safely. When sinks are used for the disposal of flammable liquids the drains to the sinks shall be properly trapped and vented.