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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q534 - Engineering Safety & Environmental Protection
159. A tank or compartment is «gas free» when there is an absence of dangerous concentrations of __________.
A tank is considered «gas free» when it lacks dangerous concentrations of flammable or toxic gases, ensuring safety for personnel entry and hot work; this definition pertains to the atmosphere's gas composition, not the absence of all liquids or residues.
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