reglab/statecodes huggingface dataset:
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 136 - Dip Tanks › Section 5437 - Flow Coat

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Except
						as modified in this Section, all of the preceding requirements for dip tanks
						apply.
(b) All flow coat operations
						shall be within an effective noncombustible enclosure, adequately vented to the
						outside of building.
(c) All piping
						shall be strongly erected and rigidly supported.
(d) Paint shall be supplied by direct low
						pressure pumping arranged to automatically shut down by means of approved heat
						actuated devices, in case of fire, or paint may be supplied by a gravity tank
						not exceeding 10 gallons in capacity.
(e) The area of the sump and an areas on
						which paint flows shall be considered the area of dip tank for the purpose of
						interpreting these Orders.
1.
						  Amendment of subsection (a) filed 12-19-78; effective thirtieth day thereafter
						  (Register 79, No. 1).
2. Amendment of NOTE filed 12-5-86; effective
						  thirtieth day thereafter (Register 86, No. 51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 136 - Dip Tanks › Section 5438 - Electrostatic Apparatus

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The installation and use of electrostatic
						detearing equipment shall conform to all applicable provisions of this
						Section.
(b) Electrostatic
						apparatus and devices used in connection with paint detearing operations shall
						be of approved types.
(c)
						Transformers, high voltage supplies, control apparatus, and all other
						electrical portions of the equipment, with the exception of high voltage grids
						and their connections, shall be located outside the vapor area or shall conform
						to the requirements of the California Electrical Safety Orders.
(d) Electrodes shall be of substantial
						construction, shall be rigidly supported in permanent locations and shall be
						effectively insulated from ground. Insulators shall be nonporous and
						noncombustible.
(e) High voltage
						leads to electrodes shall be effectively and permanently supported on suitable
						insulators, and shall be effectively guarded against accidental contact or
						grounding. An automatic means shall be provided for grounding and discharging
						any accumulated residual charge on the electrode assembly or the secondary
						circuit of the high voltage transformer when the transformer primary is
						disconnected from the source of supply.
(f) A safe distance shall be maintained
						between goods being deteared and electrodes or conductors of at least twice the
						sparking distance. A suitable sign indicating this safe distance shall be
						conspicuously posted near the assembly.
(g) Goods being deteared using this process
						are to be supported on conveyors. The conveyors shall be so arranged as to
						maintain safe distances between the goods and the electrodes at all times. All
						goods shall be so supported as to prevent any swinging or movement which would
						reduce the clearance to less than specified in (f).
(h) This process is not approved where goods
						being deteared are manipulated by hand.
(i) Electrostatic apparatus shall be equipped
						with automatic controls which will operate without time delay to disconnect the
						power supply to the high voltage transformer and to signal the operator under
						any of the following conditions:
(1) Stoppage
						of ventilation fans or failure of ventilating equipment from any
						cause.
(2) Stoppage of the conveyor
						carrying goods past the high voltage grid.
(3) Occurrence of a ground or of an imminent
						ground at any point on the high voltage system.
(4) Reduction of clearance below that
						specified in (f).
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 136 - Dip Tanks › Section 5439 - Roll Coating

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Roll coating shall conform to the applicable requirements of Sections
						5426 through
						5434.
(b) Arrangements shall be made to prevent
						sparks from static electricity by electrically bonding and grounding all
						metallic rotating and other parts of machinery and equipment and by the
						installation of static collectors or maintaining a conductive
						atmosphere.
1.
						  Amendment filed 12-5-86; effective thirtieth day thereafter (Register 86, No.
						  51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5445 - Scope

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Scope. This
						Article covers the application of flammable or combustible materials when
						applied as a spray by compressed air, "airless" or "hydraulic atomization," or
						by steam, or electrostatic methods or by any other means in continuous or
						intermittent processes. It also covers the application of combustible powders
						when applied by powder spray guns, electrostatic powder spray guns, fluidized
						beds or electrostatic fluidized beds.
NOTE: This Article does not cover outdoor spray
						  application of buildings, tanks or other similar structures, nor small portable
						  spraying apparatus not used repeatedly in the same location; however, the
						  safeguards contained in this Article pertaining to cleanliness, care of
						  flammable liquids, dangerous vapor-air or powder-air mixtures and sources of
						  ignition should be followed where applicable.
(b) This Article does not cover the spray
						application of noncombustible finishing material. Certain water type finishes,
						however, although involving little or no hazard in the liquid state may leave
						highly combustible residues upon evaporation of the liquid carrier. The
						provisions of this standard for minimizing the hazards of combustible residues
						shall be followed irrespective of the characteristics of the liquid.
(c) Spray rooms shall meet the requirements
						of Sections
						5446,
						5447,
						5448,
						5449 and
						5450.
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
2. Amendment filed 11-18-76; effective thirtieth day thereafter
						  (Register 76, No. 47).
3. Amendment of subsection (b) and new
						  subsection (c) filed 12-5-86; effective thirtieth day thereafter (Register 86,
						  No. 51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5446 - Spray Booths

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Spray booths and connected ductwork shall be substantially constructed of
						steel, securely and rigidly supported, or of concrete or masonry, except that
						aluminum or other substantial noncombustible material may be used for
						intermittent or low volume spraying. Spray booths shall be designed to sweep or
						guide air currents toward the exhaust outlet.
(b) The interior surfaces of spray booths
						shall be smooth and continuous without edges and otherwise designed to prevent
						pocketing of residues and facilitate cleaning and washing without
						injury.
(c) The floor surface of a
						spray booth and operator's working area, if combustible, shall be covered with
						noncombustible material of such character as to facilitate the safe cleaning
						and removal of residues.
(d)
						Distribution or baffle plates, if installed to promote an even flow of air
						through booth or cause the deposit of overspray before it enters exhaust duct,
						shall be of noncombustible material and readily removable or accessible on both
						sides for cleaning. Such plates shall not be located in exhaust
						ducts.
(e) Every spray booth having
						an open front elevation larger in area than 9 square feet and which is not
						equipped with doors, shall have a fire curtain or metal deflector not less than
						2 ½ inches deep installed at the upper outer edge of the booth
						opening.
(f) Where conveyors are
						arranged to carry work into or out of spray booths, the openings therefor shall
						be as small as practical.
(g) Each
						spray booth shall be separated from other dissimilar operations by not less
						than three feet, or by a greater distance, or by such partition or wall as to
						reduce the danger from adjacent hazardous operations.
(h) Spray booths shall be so installed that
						all portions are readily accessible for cleaning. A clear space of not less
						than three feet on all sides shall be kept free from storage or combustible
						construction.
NOTE: This does not preclude the installation of a
						  spray booth against a partition or wall having a one hour fire resistance
						  rating providing the booth can be maintained and cleaned.
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
2. Amendment of subsection (h) filed 12-5-86; effective
						  thirtieth day thereafter (Register 86, No. 51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5447 - Dry Type Overspray Collectors (Exhaust Air Filters)

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) In conventional dry type spray booths,
						overspray dry filters or filter rolls, if installed, shall conform to the
						following:
(1) Visible gauges or audible
						alarms or pressure activated devices shall be installed to indicate or insure
						that the required air velocity is maintained. (See Section
						5153). Dry spray booth equipped
						with a filter roll which is automatically advanced when the air velocity is
						reduced to that specified in this Section shall be arranged to cause shutdown
						of spraying operations if the filter roll fails to advance
						automatically.
(2) Maintenance
						procedures shall be established to assure replacing filter pads before
						excessive restriction to air flow occurs. Filter pads shall be inspected after
						each period of use and clogged filter pads discarded and replaced. Filter rolls
						shall be inspected to insure proper replacement of filter media.
(3) All discarded filter pads and filter
						rolls shall be immediately removed to a safe, well detached location or placed
						in a water-filled metal container and disposed of at the close of the day's
						operation unless maintained completely in water.
(4) The location of filters in a spray booth
						shall not reduce the effective booth enclosure of the articles being
						sprayed.
(5) Space within spray
						booth on the down stream and up stream sides of filters shall be protected with
						approved automatic sprinklers.
(6)
						Filters or filter rolls shall not be used when applying a spray material known
						to be highly susceptible to spontaneous heating and ignition.
(7) Those parts of the booth which act as
						supports for, or holders of filters or filter rolls shall be
						noncombustible.
(8) Clean filters
						or filter rolls shall be noncombustible or of a type having a combustibility
						not in excess of Class 2 filters as listed by Underwriters' Laboratories,
						Inc.
(9) Filters and filter rolls
						shall not be alternately used for different types of coating materials, where
						the combination of materials may be conducive to spontaneous ignition. See also
						Section 5453
						(
l
).
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 137 - Spray Coating Operations › Section 5448 - Washing Chamber

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						For wet or waterwash spray booths, the water chamber enclosure, within which
						intimate contact of contaminated air and cleaning water or other cleaning
						medium is maintained, if made of steel, shall be 18 gage or heavier and
						adequately protected against corrosion.
(b) Chambers shall be provided with adequate
						means for creating and maintaining scrubbing action for removal of particulate
						matter from the exhaust air stream.
(c) Collecting tanks shall be of welded steel
						construction or other suitable noncombustible material. If pits are used as
						collecting tanks, they shall be concrete, masonry, or other material having
						similar properties.
(d) Tanks shall
						be provided with weirs, skimmer plates, or screens to prevent sludge and
						floating paint from entering the pump suction box. Means for automatically
						maintaining the proper water level shall also be provided. Fresh water inlets
						shall not be submerged. They shall terminate at least one pipe diameter above
						the safety overflow level of the tank.
(e) Tanks shall be so constructed as to
						prevent excessive accumulation of hazardous deposits.
(f) Pump manifolds, risers, and headers shall
						be adequately sized to ensure sufficient water flow to provide efficient
						operation of the water chamber.
NOTE: Cleanout means should be provided to permit
						  mechanical cleaning of headers.
1.
						  Amendment of subsections (a) and (e) filed 12-5-86; effective thirtieth day
						  thereafter (Register 86, No. 51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5449 - Electrical and Other Sources of Ignition

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) All electrical equipment, open flames and
						other sources of ignition shall conform to the requirements of this Section,
						except as follows:
(1) Electrostatic
						apparatus shall conform to the requirements of Sections
						5454 and
						5455.
(2) Drying, curing and fusion apparatus shall
						conform to the requirements of Section
						5456.
(3) Automobile undercoating spray operations
						in garages shall conform to the requirements of Section
						5459.
(4) Powder coating equipment shall conform to
						the requirements of Section
						5460.
(5) Finishing operations as described in
						Subsection (m).
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 137 - Spray Coating Operations › Section 5452 - Fire Protection

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) In sprinklered buildings, the automatic
						sprinkler system in rooms containing spray application operations shall conform
						to Article 159, and in unsprinklered buildings where sprinklers are installed
						only to protect spraying areas, the installation shall conform to such
						standards insofar as they may be applicable. Sprinkler installations shall also
						conform to the provisions of this Section. Sprinkler heads shall be located so
						as to provide water distribution throughout the entire booth.
(b) Water supply for sprinklers in rooms
						containing spray finishing operations shall be sufficient to supply all
						sprinklers likely to open in one fire without depleting the available water for
						use in hose streams.
NOTE: Where sprinklers are installed to protect
						  spraying areas only, water may be furnished from the domestic
						  supply.
(c) Where automatic
						sprinklers protect each spray booth (together with its connecting exhaust) they
						shall be under an accessibly located separate outside stem and yoke (OS&Y)
						sub-control valve. Sprinkler systems in stacks or ducts shall be automatic and
						of a type not subject to freezing.
(d) Sprinklers (heads) protecting spraying
						areas shall be kept as free from deposits as practical by cleaning daily if
						necessary.
(e) Where automatic
						sprinkler protection is not available, a spray booth and its exhaust ducts
						shall be protected with an extinguishing system installed so as to conform
						either to Article 160, Article 161 or Article 162.
(f) An adequate supply of suitable portable
						fire extinguishers shall be installed near all spraying areas. (See Article
						157.)
1.
						  Repealer and new section filed 3-2-76; effective thirtieth day thereafter
						  (Register 76, No. 10).
2. Amendment filed 7-16-76; effective
						  thirtieth day thereafter (Register 76, No. 29).
3. Amendment of
						  subsection (a) filed 9-8-81; effective thirtieth day thereafter (Register 81,
						  No. 37).
4. Editorial correction of subsection (a) filed 6-30-82
						  (Register 82, No. 27).
5. Amendment filed 12-5-86; effective
						  thirtieth day thereafter (Register 86, No. 51).
Note: Authority cited and Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5456 - Drying, Curing or Fusion Apparatus

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Drying, curing or fusion apparatus in
						connection with spray application of flammable and combustible coatings shall
						conform to the
Standard for Ovens and Furnaces
, NFPA No.
						86A1977, where applicable and shall also conform to the following
						subsections.
(b) Spray booths,
						rooms or other enclosures used for spraying operations shall not alternately be
						used for the purpose of drying by any arrangement which will cause a
						substantial increase in the surface temperature of the spray booth, room or
						enclosure.
(c) Except as
						specifically provided in (d), drying, curing or fusion units utilizing a
						heating system having open flames or which may produce sparks shall not be
						installed in a spraying area, but may be installed adjacent thereto when
						equipped with an interlocked ventilating system arranged to:
(1) Thoroughly ventilate the drying space
						before heating system can be started;
(2) Maintain a safe atmosphere at any source
						of ignition;
(3) Automatically shut
						down heating system in the event of failure of the ventilating
						system.
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 137 - Spray Coating Operations › Section 5457 - Electrical. [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
2. Repealer filed 12-5-86; effective thirtieth day thereafter
						  (Register 86, No. 51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5458 - Ventilation. [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1.
						  Repealer filed 12-5-86; effective thirtieth day thereafter (Register 86, No.
						  51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5459 - Automobile Undercoating in Garages

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Undercoating spray operations shall conform to all
						  requirements of this Article pertaining to spray finishing operations.
EXCEPTION: Automobile undercoating operations in
						  garages, conducted in areas having adequate natural or mechanical ventilation,
						  are exempt from the requirements pertaining to spray coating operations, when
						  undercoating materials not more hazardous than kerosene (as classified by
						  Underwriters Laboratories in respect to fire hazard rating 30-40) are used, or
						  undercoating materials using only solvents having a flash point in excess of
						  100° F(37.8° C) are used, and no open flames or other sources of
						  ignition are within 20 feet while such operations are
						  conducted.
1.
						  Amendment filed 12-5-86; effective thirtieth day thereafter (Register 86, No.
						  51).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 137 - Spray Coating Operations › Section 5460 - Powder Coating

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						This section shall apply to processes in which combustible dry powders are
						applied such as:
(1) Fluidized bed.
(2) Electrostatic fluidized bed.
(3) Powder spray guns.
(4) Electrostatic powder spray
						guns.
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 138 - Hydrogen › Section 5465 - Gaseous Hydrogen at Consumer Sites

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Purpose. This Section covers the general
						principles for the installation of gaseous hydrogen systems on consumer
						premises where the hydrogen supply to the consumer premises originates outside
						the consumer premises and is delivered by mobile equipment.
EXCEPTIONS:
1.
						Systems using containers have a total hydrogen content of less than 400
						CF.
2. Hydrogen manufacturing
						plants or other establishments operated by the hydrogen supplier or his agent
						for the purpose of storing hydrogen and refilling portable containers,
						trailers, mobile supply trucks or tank cars.
(Title 24, T8-5465)
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 138 - Hydrogen › Section 5466 - Design of Hydrogen Systems

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Hydrogen containers shall comply with one
						of the following:
(1) Designed, constructed,
						and tested in accordance with appropriate requirements of ASME Boiler and
						Pressure Vessel Code, Section VIII Unfired Pressure Vessels (1974).
(2) Designed, constructed, tested and
						maintained in accordance with U.S. Department of Transportation (formerly
						Interstate Commerce Commission) Specifications and
						Regulations.
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 138 - Hydrogen › Section 5467 - Safety Relief Devices

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Hydrogen containers shall be equipped with safety relief devices as required by
						the ASME Code or the DOT Specification and Regulations under which the
						container is fabricated.
(b) Safety
						relief devices shall be arranged to discharge upward and unobstructed to the
						open air in such a manner as to prevent any impingement of escaping gas upon
						the container, adjacent structures or personnel. This requirement does not
						apply to DOT Specification containers having an internal volume of 2.0 cubic
						feet or less.
(c) Safety relief
						devices or vent piping shall be designed or located so that moisture cannot
						collect and freeze in a manner which would interfere with proper operation of
						the device.
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 138 - Hydrogen › Section 5468 - Piping, Tubing and Fittings

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1.
						  Repealer of section and new NOTE filed 4-30-99; operative 5-30-99 (Register 99,
						  No. 18).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.
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 138 - Hydrogen › Section 5469 - Equipment Assembly

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Valves, gauges, regulators and other accessories shall be suitable for hydrogen
						service.
(b) Installation of
						hydrogen systems shall be supervised by personnel familiar with proper
						practices with reference to their construction and use.
(c) Storage containers, piping, valves,
						regulating equipment and other accessories shall be readily accessible, and
						shall be protected against physical damage and against tampering.
(d) Cabinets or housings containing hydrogen
						control or operating equipment shall be adequately ventilated.
(e) Each mobile hydrogen supply unit used as
						part of a hydrogen system shall be adequately secured to prevent
						movement.
(f) Mobile hydrogen
						supply units shall be electrically bonded to the system before discharging
						hydrogen.
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 138 - Hydrogen › Section 5470 - Marking

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The hydrogen storage location shall be permanently
						  placarded as follows: "HYDROGEN FLAMMABLE GAS NO SMOKING NO OPEN FLAMES," or
						  equivalent.
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 138 - Hydrogen › Section 5471 - Testing

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
After installation, all piping, tubing and fittings
						  shall be tested and proved hydrogen gas tight at maximum operating
						  pressure.
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 138 - Hydrogen › Section 5472 - Location of Gaseous Hydrogen Systems

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The system shall be located so that it is
						readily accessible to delivery equipment and to authorized personnel.
(b) Systems shall be located above
						ground.
(c) Systems shall not be
						located beneath electric power lines.
(d) Systems shall not be located close to
						flammable liquid piping or piping of other flammable gases.
(e) Systems near above ground flammable
						liquid storage shall be located on ground higher than the flammable liquid
						storage except when dikes, diversion curbs, grading, or separating solid walls
						are used to prevent accumulation of flammable liquids under the
						system.
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 138 - Hydrogen › Section 5474 - Design Considerations at Specific Locations

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Where protective walls or roofs are
						provided, they shall be constructed of noncombustible materials.
(b) Where the enclosing sides adjoin each
						other, the enclosed area shall be properly ventilated.
(c) Electrical equipment within 15 feet shall
						be in accordance with the California Electrical Safety Orders for Class I,
						Division 2 locations. (Title 24, T8-5474)
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
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 138 - Hydrogen › Section 5475 - Separate Buildings

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Separate buildings shall be built of at
						least noncombustible construction. Windows and doors shall be located so as to
						be readily accessible in case of emergency. Windows shall be of glass or
						plastic in metal frames.
(b)
						Adequate ventilation to the outdoors shall be provided. Inlet openings shall be
						located near the floor in exterior walls only. Outlet openings shall be located
						at the high point of the room in exterior walls or roof. Inlet and outlet
						openings shall each have a minimum total area of one (1) square foot per 1,000
						cubic feet of room volume. Discharge from outlet openings shall be directed or
						conducted to a safe location.
(c)
						Explosion venting shall be provided in exterior walls or roof only. The venting
						area shall be equal to not less than one square foot per 30 cubic feet of room
						volume and may consist of any one or any combination of the following: walls of
						light, noncombustible material, preferably single thickness, single strength
						glass; lightly fastened hatch covers; lightly fastened swinging doors in
						exterior walls opening outward; lightly fastened walls or roof designed to
						relieve at a maximum pressure of 25 lb. per sq. ft.
(d) There shall be no sources of ignition
						from open flames, electrical equipment, or heating equipment.
(e) Electrical equipment shall be in
						accordance with the California Electrical Safety Orders for Class I, Division 2
						locations.
(f) Heating, if
						provided, shall be by steam, hot water, or other indirect means. (Title 24,
						T8-5475)
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
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 138 - Hydrogen › Section 5476 - Special Rooms

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Floor, walls, and ceiling shall have a fire-resistance rating of at least two
						hours. Walls or partitions shall be continuous from floor to ceiling and shall
						be securely anchored. At least one wall shall be an exterior wall. Openings to
						other parts of the building shall not be permitted. Windows and doors shall be
						in exterior walls and shall be located so as to be readily accessible in case
						of emergency. Windows shall be of glass or plastic in metal frames.
(b) Ventilation shall be as provided in
						5475(b).
(c) Explosion venting
						shall be as provided in 5475(c).
(d) There shall be no sources of ignition
						from open flames, electrical equipment, or heating equipment.
(e) Electrical equipment shall be in
						accordance with the California Electrical Safety Orders for Class I, Division 2
						locations.
(f) Heating, if
						provided, shall be by steam, hot water, or indirect means. (Title 24,
						T8-5476)
1.
						  Amendment of subsection (a) filed 3-2-76; effective thirtieth day thereafter
						  (Register 76, No. 10).
2. Amendment filed 7-16-76; effective
						  thirtieth day thereafter (Register 76, No.
						  29).
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 138 - Hydrogen › Section 5477 - Operating Instructions

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
For installations which require any operation of
						  equipment by the user, legible instructions shall be maintained at operating
						  locations.
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 138 - Hydrogen › Section 5478 - Maintenance

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Each hydrogen
						system installed on consumer premises shall be inspected annually and
						maintained by a qualified representative of the equipment owner.
(b) The area within 15 feet of any hydrogen
						container shall be kept free of dry vegetation and combustible
						material.
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 138 - Hydrogen › Section 5480 - Liquefied Hydrogen Systems at Consumer Sites

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Purpose. This section covers the general
						principles recommended for the installation of liquefied hydrogen systems on
						consumer premises where the liquid hydrogen supply to the consumer premises
						originates outside the consumer premises and is delivered by mobile equipment.
EXCEPTIONS:
(1)
						Portable containers having a total liquefied hydrogen content of less than 150
						liters (39.63 gallons).
(2)
						Liquefied hydrogen manufacturing plants or other establishments operated by the
						hydrogen supplier or his agent for the sole purpose of storing liquefied
						hydrogen and refilling portable containers, trailers, mobile supply trucks or
						tank cars.
(Title 24, T8-5480)
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 138 - Hydrogen › Section 5481 - Design of Liquefied Hydrogen Systems

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Hydrogen containers shall comply with the
						following:
(1) Storage containers shall be
						designed, constructed, and tested in accordance with appropriate requirements
						of the ASME Boiler and Pressure Vessel Code, Section VIII Unfired Pressure
						Vessels (1974) or applicable provisions of API Standard 620, Recommended Rules
						for Design & Construction of Large, Welded, Low-Pressure Storage Tanks,
						Second Edition (June 1963) and Appendix R (April 1965).
(2) Portable containers shall be designed,
						constructed and tested in accordance with U. S. Department of Transportation
						Specifications and Regulations.
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 138 - Hydrogen › Section 5482 - Supports

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Permanently installed containers shall be provided with
						  substantial noncombustible supports securely anchored on firm noncombustible
						  foundations. Steel supports in excess of 18 inches in height shall be protected
						  with protective coating having a 2-hour fire-resistance rating. (Title 24,
						  T8-5482)
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
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 138 - Hydrogen › Section 5483 - Marking

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Each container shall be legibly marked to indicate
						  "LIQUEFIED HYDROGEN--FLAMMABLE GAS."
(See Section
						  5466(c).)
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 138 - Hydrogen › Section 5484 - Safety Relief Devices

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Stationary liquefied hydrogen containers shall be equipped with safety relief
						devices sized in accordance with CGA Pamphlet S-1, Part 3, Safety Relief Device
						Standards for Compressed Gas Storage Containers.
(b) Portable liquefied hydrogen containers
						complying with the U.S. Department of Transportation Regulations shall be
						equipped with safety relief devices as required in the U.S. Department of
						Transportation Specifications and Regulations. Safety relief devices shall be
						sized in accordance with the requirements of CGA Pamphlet S-1, Safety Relief
						Device Standards, Part 1, Compressed Gas Cylinders and Part 2, Cargo and
						Portable Tank Containers.
(c)
						Safety relief devices shall be arranged to discharge unobstructed to the
						outdoors and in such a manner as to prevent impingement of escaping liquid or
						gas upon the container, adjacent structures or personnel. See Section
						5491(f) for
						venting of safety relief devices in special locations.
(d) Safety relief devices or vent piping
						shall be designed or located so that moisture cannot collect and freeze in a
						manner which would interfere with proper operation of the device.
(e) Safety relief devices shall be provided
						in piping wherever liquefied hydrogen could be trapped between
						closures.
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 138 - Hydrogen › Section 5485 - Piping, Tubing and Fittings

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Piping, tubing and fittings and gasket
						and thread sealants shall be suitable for hydrogen service at the pressures and
						temperatures involved. Cast iron pipe and fittings shall not be used.
NOTES:
1.
						Consideration shall be given to the thermal expansion and contraction of piping
						systems when exposed to temperature fluctuations of ambient to liquefied
						hydrogen temperatures.
2. Some
						materials suitable for liquefied hydrogen temperature are austenitic
						chromium-nickel alloys, certain copper alloys, and aluminum which retain
						ductility and do not become brittle at the temperature of liquefied
						hydrogen.
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 138 - Hydrogen › Section 5486 - Equipment Assembly

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Valves, gages, regulators and other accessories shall be suitable for liquefied
						hydrogen service and for the pressures and temperatures involved.
(b) Installation of liquefied hydrogen
						systems shall be supervised by personnel familiar with proper practices and
						with reference to their construction and use.
(c) Storage containers, piping, valves,
						regulating equipment and other accessories shall be readily accessible and
						shall be protected against physical damage and against tampering. A shutoff
						valve shall be located in liquid product withdrawal lines as close to the
						container as practical. On containers of over 2,000 gallons capacity, this
						shutoff valve shall be of the remote control type with no connections, flanges
						or other appurtenances (other than a welded manual shutoff valve) allowed in
						the piping between the shutoff valve and its connection to the inner
						container.
(d) Cabinets or housings
						containing hydrogen control equipment shall be ventilated to prevent any
						accumulation of hydrogen gas.
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 138 - Hydrogen › Section 5487 - Testing

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) After
						installation, all field erected piping shall be tested and proved hydrogen
						gastight at operating pressure and temperature.
(b) Containers if out of service in excess of
						one year shall be inspected and tested as outlined in (a). The safety relief
						devices shall be checked to determine if they are operable and properly
						set.
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 138 - Hydrogen › Section 5488 - Liquefied Hydrogen Vaporizers

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) The vaporizer shall be anchored and its
						connecting piping shall be sufficiently flexible to provide for the effect of
						expansion and contraction due to temperature changes.
(b) The vaporizer and its piping shall be
						adequately protected on the hydrogen and heating media sections with safety
						relief devices.
(c) Heat used in a
						liquefied hydrogen vaporizer shall be indirectly supplied utilizing media such
						as air, steam, water, or water solutions.
(d) A low temperature shutoff switch shall be
						provided in the vaporizer discharge piping to prevent flow of liquefied
						hydrogen in the event of the loss of the heat source.
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 138 - Hydrogen › Section 5489 - Electrical Systems

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
						Electrical wiring and equipment located within 3 feet of a point where
						connections are regularly made and disconnected, shall be in accordance with
						the California Electrical Safety Orders for Class I, Group B, Division 1
						locations.
(b) Except as provided
						in (a), electrical wiring and equipment located within 25 feet of a point where
						connections are regularly made and disconnected or within 25 feet of a liquid
						hydrogen storage container, shall be in accordance with the California
						Electrical Safety Orders for Class I, Group B, Division 2 locations. When
						equipment approved for Class I, Group B atmospheres is not commercially
						available, the equipment may be purged or ventilated in accordance with NFPA
						No. 496, Standard for Purged Enclosures for Electrical Equipment in Hazardous
						Locations, or intrinsically safe, or approved for Class I, Group C atmospheres.
						This requirement does not apply to electrical equipment which is installed on
						mobile supply trucks or tank cars from which the storage container is filled.
						(Title 24, T8-5489)
1.
						  Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
						  29).
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 138 - Hydrogen › Section 5490 - Bonding and Grounding

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The liquefied hydrogen container and associated piping
						  shall be electrically bonded and grounded.