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 16 - Control of Hazardous Substances › Article 109 - Hazardous Substances and Processes › Section 5161 - Definitions

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Bridging Condition. A condition where grain or other
						  agricultural products are hung up or sticking to the sides of bins, silos, and
						  tanks.
Choked leg. A condition of material buildup in the
						  bucket elevator that results in the stoppage of material flow and bucket
						  movement. A bucket elevator is not considered choked that has the up-leg
						  partially or fully loaded and has the boot and discharge cleared allowing
						  bucket movement.
Closed. As applied to containers, closed means
						  vapor-tight.
Combustible dust. Any finely divided solid material
						  which presents a fire or explosion hazard when dispersed in air.
Combustible liquid. See section
						  5194(c).
Combustible substance. Any substance which after
						  ignition will continue to burn in air.
Container. Any tank, vat, drum, or other vessel in
						  which a substance is placed for storage, use, processing, or transportation,
						  but the term excludes underground storage tanks, all pipelines and all
						  railroad, highway, water-borne and air-borne transportation vehicles and
						  equipment. An additional definition, for Hazard Communication purposes only,
						  will be found at section
						  5194(c).
Corrosive. See Appendices A and B to section
						  5194.
Covered. As applied to containers, covered means
						  providing with a closure which will normally prevent spillage or splashing of
						  contents but is not necessarily liquid or vapor tight; approved safety cans and
						  buggies will be considered covered containers. Equipment listed by the
						  Underwriters' Laboratories or bearing the approval label of other recognized
						  testing laboratories will be acceptable under this definition.
Drum. A portable metal container or barrel, provided
						  with removable plugs or other means by which it can be closed; and having a
						  capacity not less than 15 U.S. gallons or more than 110 U.S. gallons but the
						  term does not include fuel tanks or other equipment on railroad, highway,
						  air-borne or water-borne vehicles.
Flammable. See section
						  5194(c).
Flat storage structure. A grain storage building or
						  structure, that will not empty completely by gravity, and that has an
						  unrestricted ground level opening for entry, and must be entered to reclaim
						  residual grain using powered equipment or manual means.
Fugitive grain dust. The combustible dust particles
						  emitted from the stock handling system(s) which will pass through a U.S.
						  Standard 40 mesh sieve (425 microns or less).
Grain elevator. A facility engaged in the receipt,
						  handling, storage and shipment of bulk raw agricultural commodities such as
						  corn, wheat, oats, barley, sunflower seeds, and soybeans.
Hazardous substance. A substance, material, or mixture
						  which by reason of being explosive, flammable, poisonous, corrosive, oxidizing,
						  an irritant, or otherwise harmful, is likely to cause injury or illness.
						  Hazardous substance includes a hazardous chemical as defined in section
						  5194(c) and
						  hazardous waste as defined in section
						  5192(a)(3).
						  Additional definitions for hazardous substances are found in sections
						  5194(c), for
						  Hazard Communication purposes only, and 5192(a)(3), for Hazardous Waste
						  Operations purposes only.
Hot work. Any construction, alteration, repair, or
						  demolition involving riveting, welding, burning, or similar fire-producing
						  operations. Grinding, drilling, sand or shot blasting, or similar
						  spark-producing operation shall be considered hot work except when
						  circumstances do not necessitate such classification.
Inside bucket elevator. A bucket elevator that has the
						  boot and more than 20 percent of the total leg height inside the grain elevator
						  structure. Bucket elevators with leg casings that are inside and pass through
						  the roofs of rail or truck dump sheds with the remainder of the leg outside of
						  the grain elevator structure, are not considered inside bucket
						  elevators.
Irritant. See Appendix A to section
						  5194.
Jogging. Repeated starting and stopping of drive motors
						  in an attempt to clear choked legs.
Laboratory. A plant or generally recognized department
						  or subdivision of a plant where the primary purpose is testing, analysis,
						  inspection, research, experimentation, process development or
						  instruction.
Lagging. A covering on drive pulleys used to increase
						  the coefficient of friction between the pulley and the belt.
Open. As applied to containers, open means not covered
						  or closed.
Oxidizer. A substance other than a blasting agent or
						  explosive as defined in section
						  5237(a), that
						  initiates or promotes combustion in other materials,thereby causing fire either
						  of itself or through the release of oxygen or other gases. Oxidizers include
						  nitrates, chlorates, perchlorates, peroxides, permanganates, oxygen, and
						  others.
NOTE: Strong oxidizers, especially when finely divided,
						  may initiate combustion in combustible materials. Some substances, not
						  ordinarily considered oxidizers, must be regarded as such under certain
						  circumstances; e.g., finely divided ferric oxide in contact with powdered
						  magnesium or aluminum.
Poison. A substance which when taken in small
						  quantities or low concentrations by mouth, inhaled, or absorbed through the
						  skin rapidly jeopardizes life by other than mechanical or physical
						  action.
Pyrophoric. A substance that will ignite spontaneously
						  in air at a temperature of 130F (54.45C) or below.
Spontaneously flammable substance. See
						  Pyrophoric.
Station. A building, room or section of a room in which
						  a specific operation or part of a process is performed.
1.
						  Amendment filed 11-18-76; effective thirtieth day thereafter (Register 76, No.
						  47).
2. Amendment filed 9-14-78; effective thirtieth day thereafter
						  (Register 78, No. 37).
3. Amendment filed 12-10-87; operative 1-9-88
						  (Register 87, No. 51).
4. Amendment filed 6-5-90; operative 7-5-90
						  (Register 90, No. 29).
5. Amendment of definition of "Hazardous
						  substance" filed 5-29-2003; operative 6-28-2003 (Register 2003, No.
						  22).
6. New definition of "Flat storage structure" filed 11-14-2006;
						  operative 12-14-2006 (Register 2006, No. 46).
7. Amendment of
						  definitions of "Corrosive" and "Hazardous substance" filed 5-5-2014; operative
						  5-6-2014 pursuant to Government Code section
						  11343.4(b)(3)
						  (Register 2014, No. 19).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.