Mich. Admin. Code R. 408.11212 - General requirements
Rule 1212.
(1)
A mixture of fuel gas with air or oxygen shall not be permitted except when
consumed at a burner or torch.
(2)
Only apparatus designed for use with fuel gas or oxygen shall be used for
welding or cutting.
(3) The total
volume of acetylene used per hour shall not exceed 1/7 of the total volume of
the acetylene supply in the system.
(4) Liquid acetylene shall not be
used.
(5) A cylinder to which a
regulator is attached shall not be moved unless secured to a hand truck or
powered truck designed or equipped for this purpose.
(6) A cylinder valve shall be closed in all
of the following situations:
(a) When the
cylinder is moved.
(b) When the
work is finished or is left unattended during lunch, overnight, or for any
other prolonged period.
(c) When
the cylinder is empty.
(d) When the
regulator is removed.
(7) Fuel gas shall not flow from a cylinder
or manifold through a torch or other device equipped with a shutoff valve
unless the pressure is reduced by a regulator attached to the cylinder or
manifold.
(8) An oxygen cylinder,
cylinder valve, coupling regulator, hose, and apparatus shall be kept free from
oily or greasy substances and shall not be handled with oily hands or gloves.
Precautions shall be taken to prevent a jet of oxygen from striking an oily
surface or greasy clothes or from entering a fuel, oil, or other storage
tank.
(9) Oxygen shall not be used
as a substitute for compressed air or for any other use, except for welding or
cutting or life support procedures.
(10) Welders shall place welding cable and
other equipment so that it is clear of passageways, ladders, and stairways or
it shall be protected against damage or hazards to an employee.
Notes
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