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- Cylinder fittings vary between gas types, inert, oxidizing, corrosive, and flammable.
- Never use grease or PFTE/Teflon™ tape to force a fitting—you may be putting together two types of incompatible fittings!
- Always use non-sparking tools (brass or aluminum) to work on flammable or oxidizing gas fittings.
- Fittings and tubing must be compatible with the gas. For example, CGA 480 580 fittings are only for inert gases like helium or argon.
- Flammable and poisonous gases may only be used with stainless steel tubing.
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