reglab/statecodes huggingface dataset:
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-490 - Application, installation, and operation of arc welding and cutting equipment

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-490, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-490, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49001 - Environmental conditions required to be taken into account when selecting arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
Note:
The employer may ensure that equipment is designed
								for safety by choosing equipment that complies with the Requirements for
								Electric Arc-Welding Apparatus, NEMA EW-1-1962, National Electrical
								Manufacturers Association or the Safety Standard for Transformer-Type
								Arc-Welding Machines, ANSI C33.2-1956, Underwriters' Laboratories.
(1) Standard
				  machines for arc welding service must be designed and constructed to carry
				  their rated load with rated temperature rises where the temperature of the
				  cooling air is a maximum of 40°C (104°F) and where the altitude is a
				  maximum of 3,300 feet, and must be suitable for operation in atmospheres
				  containing gases, dust, and light rays produced by the welding arc.
(2) When exposed to the following or other
				  conditions, machines must be designed to safely meet the requirements of the
				  service:
(a) Unusually corrosive
				  fumes;
(b) Steam or excessive
				  humidity;
(c) Excessive oil
				  vapor;
(d) Flammable
				  gases;
(e) Abnormal vibration or
				  shock;
(f) Excessive
				  dust;
(g) Weather;
(h) Unusual seacoast or shipboard
				  conditions.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49003 - Voltages when using arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
Open circuit (no load) voltages of arc welding and cutting
					 machines should be as low as possible consistent with satisfactory welding or
					 cutting being done. Following are the maximum limits:
(1) For alternating-current machines:
(a) Manual arc welding and cutting-80
				  volts.
(b) Automatic (machine or
				  mechanized) arc welding and cutting-100 volts.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49005 - Designing arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
(1) A controller integrally mounted in an
				  electric motor driven welder must be able to carry the rated motor current,
				  must be able to make and interrupt stalled rotor current of the motor, and may
				  serve as the running overcurrent device if provided with the number of
				  over-current units as specified by chapter 296-307 WAC Part T. Starters with
				  magnetic undervoltage release should be used with machines installed more than
				  one to a circuit to prevent circuit overload caused by simultaneously starting
				  several motors upon return of voltage.
(2) On all types of arc welding machines,
				  control apparatus must be enclosed except for the operating wheels, levers, or
				  handles.
Note:
Control handles and wheels should be large enough to
							 be easily grasped by a gloved hand.
(3) Input power terminals, tap change
				  devices, and live metal parts connected to input circuits must be completely
				  enclosed and accessible only by tools.
(4) Terminals for welding leads should be
				  protected from accidental electrical contact by employees or by metal objects
				  i.e., vehicles, crane hooks, etc. The employer may provide protection with:
(a) Dead-front receptacles for plug
				  connections;
(b) Recessed openings
				  with nonremovable hinged covers;
(c) Heavy insulating sleeving or taping;
				  or
(d) Other equivalent electrical
				  and mechanical protection.
If a welding lead terminal that is intended to be used
					 exclusively for connection to the work is connected to the grounded enclosure,
					 it must be done by a conductor at least two AWG sizes smaller than the
					 grounding conductor and the terminal must be marked to indicate that it is
					 grounded.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49007 - Installing arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
Arc welding equipment, including the power supply, must be
					 installed according to the requirements of chapter 296-307 WAC Part
					 T.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-49007,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-49007,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49007, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49009 - Grounding arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
(1) The frame or case of the welding machine
				  (except engine-driven machines) must be grounded according to the requirements
				  of chapter 296-307 WAC Part T.
(2)
				  Conduits containing electrical conductors must not be used for completing a
				  work-lead circuit. Pipelines must not be used as a permanent part of a
				  work-lead circuit, but may be used during construction, extension or repair if
				  current is not carried through threaded joints, flanged bolted joints, or
				  caulked joints and special precautions are used to avoid sparking at connection
				  of the work-lead cable.
(3) Using
				  chains, wire ropes, cranes, hoists, and elevators to carry welding current is
				  prohibited.
(4) Where a structure,
				  conveyor, or fixture is regularly used as a welding current return circuit,
				  joints must be bonded or provided with adequate current collecting devices and
				  appropriate periodic inspection should be conducted to ensure that no
				  electrocution, shock, or fire hazard exists.
(5) All ground connections must be checked to
				  determine that they are mechanically strong and electrically adequate for the
				  required current.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-49009,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-49009,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49009, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49011 - Supply connections and conductors

Current through Register Vol. 24-14, July 15, 2024
(1) A disconnecting switch or controller must
				  be provided at or near each welding machine without a switch or controller
				  mounted as an integral part of the machine. The switch must meet the
				  requirements of chapter 296-307 WAC Part T. Overcurrent protection must be
				  provided as specified in chapter 296-307 WAC Part T. A disconnect switch with
				  overload protection or equivalent disconnect and protection means, permitted by
				  chapter 296-307 WAC Part T must be provided for each outlet intended for
				  connection to a portable welding machine.
(2) For individual welding machines, the
				  rated current-carrying capacity of the supply conductors must be at least that
				  of the rated primary current of the welding machines.
(3) For groups of welding machines, the rated
				  current-carrying capacity of conductors may be less than the sum of the rated
				  primary currents of the welding machines supplied. The conductor rating must be
				  determined according to the machine loading based on the use to be made of each
				  welding machine and the allowance permissible in the event that all the welding
				  machines supplied by the conductors will not be in use at the same
				  time.
(4) In operations involving
				  several welders on one structure, d.c. welding process requirements may require
				  the use of both polarities; or supply circuit limitations for a.c. welding may
				  require distribution of machines among the phases of the supply circuit. In
				  such cases, no load voltages between electrode holders will be two times normal
				  in d.c. or 1, 1. 4, 1. 73, or 2 times normal on a.c. machines. Similar voltage
				  differences will exist if both a.c. and d.c. welding are done on the same
				  structure.
(a) All d.c. machines must be
				  connected with the same polarity.
(b) All a.c. machines must be connected to
				  the same phase of the supply circuit and with the same instantaneous
				  polarity.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49013 - Operating arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
(1) Employees assigned to operate or maintain
				  arc welding equipment must be acquainted with the requirements of WAC
				  296-307-490,
				  296-307-495,
				  and
				  296-307-500;
				  if doing gas-shielded arc welding, also Recommended Safe Practices for
				  Gas-Shielded Arc Welding, A6.1-1966, American Welding Society.
(2) Before starting operations, all
				  connections to the machine must be checked to make certain they are properly
				  made. The work lead must be firmly attached to the work; magnetic work clamps
				  must be freed from adherent metal particles of spatter on contact surfaces.
				  Coiled welding cable must be spread out before use to avoid serious overheating
				  and damage to insulation.
(3) The
				  employer must ensure that the welding machine frame grounding is checked with
				  special attention given to safety ground connections of portable
				  machines.
(4) Cylinders must be
				  kept away from radiators, piping systems, layout tables, etc., that may be used
				  for grounding electric circuits. Any practice such as the tapping of an
				  electrode against a cylinder to strike an arc is prohibited.
(5) There must be no leaks of cooling water,
				  shielding gas or engine fuel.
(6)
				  The employer must ensure that the machine has proper switching equipment for
				  shutting down.
(7) Printed rules
				  and instructions covering operation of equipment supplied by the manufacturers
				  must be strictly followed.
(8)
				  Electrode holders when not in use must be placed so that they cannot make
				  electrical contact with persons, conducting objects, fuel or compressed gas
				  tanks.
(9) Cables with splices
				  within 10 feet of the holder are prohibited. The welder should not coil or loop
				  welding electrode cable around parts of the body.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-49013,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-49013,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49013, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49015 - Maintaining arc welding equipment

Current through Register Vol. 24-14, July 15, 2024
(1) The operator should report any equipment
				  defect or safety hazard to the supervisor and discontinue using the equipment
				  until its safety is ensured. Repairs must be made only by qualified
				  persons.
(2) Machines that have
				  become wet must be thoroughly dried and tested before being used.
(3) Work and electrode lead cables should be
				  frequently inspected for wear and damage. Cables with damaged insulation or
				  exposed bare conductors must be replaced. Lengths of work and electrode cables
				  must be joined by connecting means specifically intended for the purpose. The
				  connecting means must have insulation adequate for the service
				  conditions.
97-09-013, recodified as § 296-307-49015, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49015, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-495 - Fire prevention and protection

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-495, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-495, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49501 - Basic fire prevention precautions

Current through Register Vol. 24-14, July 15, 2024
For more information on these basic precautions and the
					 special precautions of WAC
					 296-307-49503,
					 including fire protection and prevention responsibilities of welders, cutters,
					 their supervisors (including outside contractors), and management, see the
					 Standard for Fire Prevention in Use of Cutting and Welding Processes, NFPA
					 Standard 51B, 1962.
The basic precautions for fire prevention in welding or
					 cutting work are:
(1) If the object to
				  be welded or cut cannot readily be moved, all movable fire hazards in the
				  vicinity must be taken to a safe place.
(2) If the object to be welded or cut cannot
				  be moved and if all the fire hazards cannot be removed, then guards must be
				  used to confine the heat, sparks, and slag, and to protect the fire
				  hazards.
(3) If the requirements of
				  this section cannot be met, then welding and cutting are prohibited.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-49501,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-49501,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49501, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49503 - Special fire prevention precautions

Current through Register Vol. 24-14, July 15, 2024
When the nature of the work to be performed falls within
					 the scope of WAC
					 296-307-49501(2),
					 certain additional precautions may be necessary:
(1) Wherever there are floor openings or
				  cracks in the flooring that cannot be closed, precautions must be taken so that
				  no readily combustible materials on the floor below will be exposed to sparks
				  that drop through. The same precautions must be observed with regard to cracks
				  or holes in walls, open doorways, and open or broken windows.
(2) Suitable fire extinguishing equipment
				  must be maintained in a state of readiness for instant use. Such equipment may
				  consist of pails of water, buckets of sand, hose, or portable extinguishers
				  depending upon the nature and quantity of the combustible material
				  exposed.
(3) The following
				  requirements apply to fire watch:
(a) Fire
				  watchers are required whenever welding or cutting is performed in locations
				  where other than a minor fire might develop, or any of the following conditions
				  exist:
(i) Appreciable combustible material,
				  in building construction or contents, closer than 35 feet to the point of
				  operation.
(ii) Appreciable
				  combustibles are more than 35 feet away but are easily ignited by
				  sparks.
(iii) Wall or floor
				  openings within a 35-foot radius expose combustible material in adjacent areas
				  including concealed spaces in walls or floors.
(iv) Combustible materials are adjacent to
				  the opposite side of metal partitions, walls, ceilings, or roofs and are likely
				  to be ignited by conduction or radiation.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49505 - Precautions to be taken when welding or cutting containers

Current through Register Vol. 24-14, July 15, 2024
(1) No welding,
				  cutting, or other hot work may be performed on used drums, barrels, tanks or
				  other containers until they have been cleaned thoroughly enough to be certain
				  that there are no flammable materials present or any substances such as
				  greases, tars, acids, or other materials which when subjected to heat, might
				  produce flammable or toxic vapors. Any pipe lines or connections to the drum or
				  vessel must be disconnected or blanked.
(2) All hollow spaces, cavities, or
				  containers must be vented to permit the escape of air or gases before
				  preheating, cutting or welding. Purging with inert gas is
				  recommended.
97-09-013, recodified as § 296-307-49505, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49505, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-49507 - Precautions to be taken when welding in confined spaces

Current through Register Vol. 24-14, July 15, 2024
(1) When arc welding work is stopped for a
				  substantial time, such as during lunch or overnight, all electrodes must be
				  removed from the holders and the holders carefully located so that accidental
				  contact cannot occur and the machine be disconnected from the power
				  source.
(2) In order to eliminate
				  the possibility of gas escaping through leaks or improperly closed valves, when
				  gas welding or cutting, the torch valves must be closed and the gas supply to
				  the torch positively shut off at some point outside the confined area whenever
				  the torch is not to be used for a substantial period of time, such as during
				  lunch hour or overnight. Where practical, the torch and hose must also be
				  removed from the confined space.
97-09-013, recodified as § 296-307-49507, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-49507, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-500 - Protection of employees

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-500, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-500, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50001 - Eye protection

Current through Register Vol. 24-14, July 15, 2024
(1)
				  Helmets or hand shields must be used during all arc welding or arc cutting
				  operations, excluding submerged arc welding. Goggles should also be worn during
				  arc welding or cutting operations to provide protection from injurious rays
				  from adjacent work, and from flying objects. The goggles may have either clear
				  or colored glass, depending on the amount of exposure to adjacent welding
				  operations. Helpers or attendants must have proper eye protection.
(2) Goggles or other suitable eye protection
				  must be used during all gas welding or oxygen cutting operations. Spectacles
				  without side shields, with suitable filter lenses are permitted for use during
				  gas welding operations on light work, for torch brazing, or for
				  inspection.
(3) All operators and
				  attendants of resistance welding or resistance brazing equipment must use
				  transparent face shields or goggles, depending on the job, to protect their
				  faces or eyes as required.
(4)
				  Suitable goggles must be provided where needed for brazing operations not
				  above.
97-09-013, recodified as § 296-307-50001, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50001, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50005 - Protective clothing for welders

Current through Register Vol. 24-14, July 15, 2024
(1) Employees exposed to the hazards created
				  by welding, cutting, or brazing operations must be protected by personal
				  protective equipment according to the requirements of chapter 296-307 WAC Part
				  H. Appropriate protective clothing required for any welding operation will vary
				  with the size, nature and location of the work to be performed.
(2) The following suggestions may be helpful
				  when choosing protective clothing:
(a) Except
				  when engaged in light work, all welders should wear flameproof gauntlet
				  gloves.
(b) Flameproof aprons made
				  of leather, asbestos, or other suitable material may help to protect against
				  radiated heat and sparks.
(c)
				  Woolen clothing is better than cotton because it is less easily ignited and
				  helps to protect the welder from changes in temperature. Cotton clothing, if
				  used, should be chemically treated to reduce its combustibility. All outer
				  clothing such as jumpers or overalls should be reasonably free from oil or
				  grease.
(d) Sparks may lodge in
				  rolled-up sleeves, pockets, or cuffs. Therefore sleeves and collars should be
				  buttoned, and clothing should have no front pockets. Trousers or overalls
				  should be uncuffed.
(e) For heavy
				  work, fire-resistant leggings, high boots, or other equivalent means should be
				  used.
(f) In production work a
				  sheet metal screen in front of the employee's legs can provide further
				  protection against sparks and molten metal in cutting operations.
(g) Capes or shoulder covers made of leather
				  or other suitable materials should be worn during overhead welding or cutting
				  operations. Leather skull caps may be worn under helmets to prevent head
				  burns.
(h) For welding and cutting
				  overhead or in extremely confined spaces, ear protection is sometimes
				  desirable.
(i) Where there is
				  exposure to sharp or heavy falling objects, or a hazard of bumping in confined
				  spaces, hard hats or head protectors must be used.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50007 - Other requirements that apply to employee protection

Current through Register Vol. 24-14, July 15, 2024
(1) The employer must ensure that a welder or
				  helper working on platforms, scaffolds, or runways is protected against falling
				  by using railings, safety belts, life lines, or other equally effective
				  safeguards.
(2) Welders must place
				  welding cable and other equipment so that it is clear of passageways, ladders,
				  and stairways.
97-09-013, recodified as § 296-307-50007, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50007, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50009 - Employee protection for work in confined spaces

Current through Register Vol. 24-14, July 15, 2024
Confined space
.
A relatively
					 small or restricted space such as a tank, boiler, pressure vessel, or small
					 compartment of a ship.
(1) Confined
				  spaces must be ventilated. For ventilation requirements see WAC
				  296-307-50011
				  through
				  296-307-50029.
(2) When welding or cutting in a confined
				  space, the gas cylinders and welding machines must be left outside. Before
				  operations are started, heavy portable equipment mounted on wheels must be
				  securely blocked to prevent accidental movement.
(3) Where a welder must enter a confined
				  space through a manhole or other small opening, means must be provided for
				  quickly removing the welder in case of emergency. When safety belts and
				  lifelines are used, they must be attached so that the welder's body cannot be
				  jammed in a small exit opening. An attendant with a preplanned rescue procedure
				  must be stationed outside to observe the welder at all times and be able to put
				  rescue operations into effect.
(4)
				  After welding operations are completed, the welder must mark the hot metal or
				  provide some other means of warning other employees.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-50009,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-50009,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50009, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50011 - General requirements that apply to welding ventilation

Current through Register Vol. 24-14, July 15, 2024
(1) The following
				  three factors in arc and gas welding must be considered when determining the
				  amount of contamination to which welders may be exposed:
(a) Dimensions of space in which welding is
				  to be done (especially ceiling height);
(b) Number of welders; and
(c) The possibility of hazardous fumes,
				  gases, or dust according to the metals involved.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50013 - Ventilation must be provided for general welding and cutting

Current through Register Vol. 24-14, July 15, 2024
(1) Mechanical
				  ventilation must be provided when welding or cutting is done on metals not
				  covered in WAC
				  296-307-50019
				  through
				  296-307-50029
				  in the following locations:
(a) In a space of
				  less than 10,000 cubic feet per welder.
(b) In a room with a ceiling height of less
				  than 16 feet.
(c) In confined
				  spaces or where the welding space contains partitions, balconies, or other
				  structural barriers to the extent that they significantly obstruct
				  cross-ventilation.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50015 - Local exhaust hoods and booths

Current through Register Vol. 24-14, July 15, 2024
Mechanical local exhaust ventilation may be provided by
					 either of the following:
(1) Freely
				  movable hoods intended to be placed by the welder as near as practical to the
				  work being welded and provided with a rate of airflow sufficient to maintain a
				  velocity in the direction of the hood of 100 linear feet per minute in the zone
				  of welding when the hood is at its most remote distance from the point of
				  welding. The rates of ventilation required to accomplish this control velocity
				  using a 3-inch wide flanged suction opening are shown in the following table:
Welding zone
Minimum air flow cubic feet/minutes
Duct diameter inches
4 to 6 inches from arc or torch
150
3
6 to 8 inches from arc or torch
275
3-1/2
8 to 10 inches from arc or torch
425
4-1/2
10 to 12 inches from arc or torch
600
5-1/2
1 When
				  brazing with cadmium bearing materials or when cutting on such materials
				  increased rates of ventilation may be required.
2 Nearest half-inch duct diameter based on
				  4,000 feet per minute velocity in pipe.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50017 - Ventilation must be provided in confined spaces

Current through Register Vol. 24-14, July 15, 2024
(1) All welding and cutting operations
				  carried on in confined spaces must be adequately ventilated to prevent the
				  accumulation of toxic materials or possible oxygen deficiency. This applies to
				  welders, helpers, and other employees in the immediate vicinity. All
				  replacement air must be clean and respirable.
(2) In circumstances where it is impossible
				  to provide such ventilation, airline respirators or hose masks approved by the
				  Mine Safety and Health Administration (MSHA) and the National Institute for
				  Occupational Safety and Health (NIOSH) for this purpose must be used.
(3) In areas immediately hazardous to life,
				  hose masks with blowers or self-contained breathing equipment must be used. The
				  breathing equipment must be approved by the Mine Safety and Health
				  Administration (MSHA) and the National Institute for Occupational Safety and
				  Health (NIOSH).
(4) Where welding
				  operations are carried on in confined spaces and where welders and helpers are
				  provided with hose masks, hose masks with blowers or self-contained breathing
				  equipment approved by the Mine Safety and Health Administration (MSHA) and the
				  National Institute for Occupational Safety and Health (NIOSH), an employee must
				  be stationed on the outside of such confined spaces to ensure the safety of
				  those working within.
(5) Oxygen
				  must not be used for ventilation.
97-09-013, recodified as § 296-307-50017, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50017, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50019 - Welding fluorine compounds

Current through Register Vol. 24-14, July 15, 2024
In confined spaces, welding or cutting involving fluxes,
					 coverings, or other materials that contain fluorine compounds must be done
					 according to WAC
					 296-307-50017.
Fluorine compound
.
A compound
					 that contains fluorine as an element in chemical combination, not as a free
					 gas.
Note:
The need for local exhaust ventilation or airline
							 respirators for welding or cutting in other than confined spaces will depend on
							 the circumstances. However, such protection is desirable for fixed-location
							 production welding and for all production welding on stainless steels. Where
							 air samples taken at the welding location indicate that the fluorides liberated
							 are below the maximum allowable concentration, such protection is not
							 necessary.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-50019,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-50019,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50019, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50021 - Welding zinc

Current through Register Vol. 24-14, July 15, 2024
(1) In confined
				  spaces welding or cutting involving zinc-bearing base or filler metals or
				  metals coated with zinc-bearing materials must be done according to WAC
				  296-307-50017.
(2) Indoors, welding or cutting involving
				  zinc-bearing base or filler metals coated with zinc-bearing materials must be
				  done according to WAC
				  296-307-50015.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-50021,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-50021,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50021, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50023 - Welding lead

Current through Register Vol. 24-14, July 15, 2024
(1) In confined
				  spaces, welding involving lead-base metals (erroneously called lead-burning)
				  must be done according to WAC
				  296-307-50017.
(2) Indoors, welding involving lead-base
				  metals must be done according to WAC
				  296-307-50015.
(3) In confined spaces or indoors, welding or
				  cutting involving metals containing lead, other than as an impurity, or
				  involving metals coated with lead-bearing materials, including paint, must be
				  done using local exhaust ventilation or airline respirators. Outdoors, such
				  operations must be done using respiratory protective equipment approved by the
				  Mine Safety and Health Administration (MSHA) and the National Institute for
				  Occupational Safety and Health (NIOSH) for such purposes. In all cases,
				  employees in the immediate vicinity of the cutting operation must be protected
				  as necessary by local exhaust ventilation or airline respirators.
Note:
See chapter 296-62 WAC for additional requirements on
							 lead.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-50023,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-50023,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50023, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50025 - Welding beryllium

Current through Register Vol. 24-14, July 15, 2024
Welding or cutting indoors, outdoors, or in confined spaces
					 involving beryllium-containing base or filler metals must be done using local
					 exhaust ventilation and airline respirators unless atmospheric tests under the
					 most adverse conditions have established that employee exposure is within the
					 acceptable concentrations defined by WAC
					 296-307-62625.
					 In all cases, employees in the immediate vicinity of the welding or cutting
					 operations must be protected as necessary by local exhaust ventilation or
					 airline respirators.
Statutory Authority:
						RCW
						 49.17.010,
						49.17.040,
						49.17.050,
						49.17.060. 05-01-166, §
						296-307-50025, filed 12/21/04, effective 4/2/05. 97-09-013, recodified as
						§ 296-307-50025, filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50025, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50027 - Welding cadmium

Current through Register Vol. 24-14, July 15, 2024
(1)
				  Welding or cutting indoors or in confined spaces involving cadmium-bearing or
				  cadmium-coated base metals must be done using local exhaust ventilation or
				  airline respirators unless atmospheric tests under the most adverse conditions
				  have established that employee exposure is within the acceptable concentrations
				  defined by chapter 296-62 WAC. Outdoors, such operations must be done using
				  respiratory protective equipment such as fume respirators approved by the Mine
				  Safety and Health Administration (MSHA) and the National Institute for
				  Occupational Safety and Health (NIOSH) for such purposes.
(2) Welding (brazing) involving
				  cadmium-bearing filler metals must be done using ventilation as prescribed in
				  WAC
				  296-307-50015
				  or
				  296-307-50017
				  if the work is to be done in a confined space.
Note:
See chapter 296-62 WAC for additional requirements on
							 cadmium.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-50027,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-50027,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50027, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part V - Welding › Section 296-307-50029 - Welding mercury

Current through Register Vol. 24-14, July 15, 2024
Welding or cutting indoors or in a confined space involving
					 metals coated with mercury-bearing materials, including paint, must be done
					 using local exhaust ventilation or airline respirators unless atmospheric tests
					 under the most adverse conditions have established that employee exposure is
					 within the acceptable concentrations defined by WAC
					 296-307-62625.
					 Outdoors, such operations must be done using respiratory protective equipment
					 approved by the Mine Safety and Health Administration (MSHA) and the National
					 Institute for Occupational Safety and Health (NIOSH) for such
					 purposes.
Statutory Authority:
						RCW
						 49.17.010,
						49.17.040,
						49.17.050,
						49.17.060. 05-01-166, §
						296-307-50029, filed 12/21/04, effective 4/2/05. 97-09-013, recodified as
						§ 296-307-50029, filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-50029, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part W - Powered Industrial Trucks (Forklifts) › Section 296-307-520 - Powered industrial trucks (forklifts)

Current through Register Vol. 24-14, July 15, 2024
97-09-013, recodified as § 296-307-520, filed
						4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						49.17.040,[49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-520, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part W - Powered Industrial Trucks (Forklifts) › Section 296-307-52001 - Scope

Current through Register Vol. 24-14, July 15, 2024
WAC
					 296-307-520
					 applies to all powered industrial trucks used in agricultural
					 operations.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-52001,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-52001,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-52001, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part W - Powered Industrial Trucks (Forklifts) › Section 296-307-52003 - Powered industrial truck

Current through Register Vol. 24-14, July 15, 2024
Powered industrial truck
or
truck
.
A fork truck, industrial tractor, platform
					 lift truck, motorized hand truck, or other specialized industrial trucks,
					 powered by electric motors or internal combustion engines. The definition does
					 not include compressed gas-operated industrial trucks, tractor-mounted
					 forklifts, or vehicles intended primarily for earth moving or over-the-road
					 hauling.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-52003,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-52003,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-52003, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part W - Powered Industrial Trucks (Forklifts) › Section 296-307-52005 - Manufacturer's requirements that apply to powered industrial trucks

Current through Register Vol. 24-14, July 15, 2024
(1) All powered
				  industrial trucks in use by an employer must meet the applicable requirements
				  of design, construction and stability as defined by the American National
				  Standards Institute B56.1-1969, Safety Standards for Powered Industrial Trucks,
				  except for vehicles intended primarily for earth moving or over-the-road
				  hauling. All new powered industrial trucks acquired and used by an employer on
				  or after March 1, 2000, must meet the applicable requirements of design,
				  construction and stability as defined in ASME B56.1-1993. The employer must
				  ensure that all powered industrial trucks are inspected, maintained and
				  operated in accordance with this section and the manufacturer's recommendations
				  and specifications.
(2) Approved
				  trucks must have a label indicating approval by the testing laboratory as
				  meeting the specifications and requirements of ANSI B56.1-1969.
(3) Modifications or additions must only be
				  performed with the manufacturer's prior written approval. When modifications or
				  additions are made, capacity, operation, and maintenance instruction plates,
				  tags, or decals must be changed accordingly.
(4) If the truck is equipped with front-end
				  attachments other than factory installed attachments, it must be marked to
				  identify the attachments and show the approximate weight of the truck and
				  attachment combination at maximum elevation with the load centered from side to
				  side.
(5) The user must ensure that
				  all nameplates and markings are in place and legible.
Statutory Authority:
						RCW
						 49.17.010, [49.17].040 and[49.17].050 .
						00-01-176, § 296-307-52005, filed 12/21/99, effective 3/1/00. Statutory
						Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-52005,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-52005,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and[49.17.]060 .
						96-22-048, § 296-306A-52005, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part W - Powered Industrial Trucks (Forklifts) › Section 296-307-52007 - Classifications of powered industrial trucks

Current through Register Vol. 24-14, July 15, 2024
Powered industrial trucks are identified according to the
					 following classifications:
(1)
D
				  Classification.
Trucks that are diesel engine powered that have minimum
				  safeguards against inherent fire hazards.
(2)
DS Classification.
Diesel
				  powered trucks that, in addition to meeting all the requirements for the type D
				  trucks, with additional safeguards to the exhaust, fuel, and electrical
				  systems.
(3)
DY
				  Classification.
Diesel powered trucks that have all the safeguards of
				  the DS trucks; in addition, any electrical equipment is completely enclosed.
				  They are equipped with temperature limitation features.
(4)
E Classification.
Electrically powered trucks with minimum acceptable safeguards against inherent
				  fire hazards.
(5)
ES
				  Classification.
Electrically powered trucks that, in addition to all of
				  the requirements for the E trucks, are provided with additional safeguards to
				  the electrical system to prevent emission of hazardous sparks and to limit
				  surface temperatures.
(6)
EE
				  Classification.
Electrically powered trucks that have, in addition to
				  all of the requirements for the E and ES type trucks, have their electric
				  motors and all other electrical equipment completely enclosed.
(7)
EX Classification.
Electrically powered trucks that differ from E, ES, or EE type trucks in that
				  the electrical fittings and equipment are so designed, constructed, and
				  assembled to be used in atmospheres containing flammable vapors or
				  dusts.
(8)
G
				  Classification.
Gasoline powered trucks that have minimum acceptable
				  safeguards against inherent fire hazards.
(9)
GS Classification.
Gasoline
				  powered trucks with additional safeguards to the exhaust, fuel, and electrical
				  systems.
(10)
LP
				  Classification.
Liquified petroleum gas-powered trucks that have minimum
				  acceptable safeguards against inherent fire hazards.
(11)
LPS Classification.
LP-gas
				  powered trucks that in addition to meeting the requirements for LP trucks, are
				  provided with additional safeguards to the exhaust, fuel, and electrical
				  systems.
Statutory Authority:
						RCW
						 49.17.010, [49.17].040 and[49.17].050 .
						00-01-176, § 296-307-52007, filed 12/21/99, effective 3/1/00. 97-09-013,
						recodified as § 296-307-52007, filed 4/7/97, effective 4/7/97. Statutory
						Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-52007, filed 10/31/96, effective
						12/1/96.
Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-307 - Safety standards for agriculture › SPECIALIZED OPERATIONS › Part W - Powered Industrial Trucks (Forklifts) › Section 296-307-52009 - The employer must consider the following before choosing a powered industrial truck

Current through Register Vol. 24-14, July 15, 2024
Before choosing the industrial truck to use, the user must
					 determine whether the atmosphere or location is hazardous or nonhazardous. The
					 type of industrial truck must be chosen according to the requirements of WAC
					 296-307-52011.
Statutory Authority:
						RCW
						 49.17.040. 98-24-096, § 296-307-52009,
						filed 12/1/98, effective 3/1/99. 97-09-013, recodified as § 296-307-52009,
						filed 4/7/97, effective 4/7/97. Statutory Authority:
						RCW
						 49.17.040, [49.17.]050 and [49.17.]060.
						96-22-048, § 296-306A-52009, filed 10/31/96, effective
						12/1/96.