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1910.430(i)(1)
Equipment used with oxygen or mixtures containing over forty percent (40%) by volume oxygen shall be designed for oxygen service.
1910.430(i)(2)
Components (except umbilicals) exposed to oxygen or mixtures containing over forty percent (40%) by volume oxygen shall be cleaned of flammable materials before use.
1910.430(i)(3)
Oxygen systems over 125 psig and compressed air systems over 500 psig shall have slow-opening shut-off valves.

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