DAMAGE CONTROL MUSEUM

DC EQUIPMENT MUSEUM

Gas Free Equipment

Many substances carried onboard ships were flammable or explosive; some were toxic and some oxygen-deficient conditions were created by closing or sealing compartments. Fires and explosions occurring within tanks, voids and compartments, whether after a fire or during maintenance and repairs, could result in a loss of life, time, material and facilities. Examination of such dangers was absolutely essential. Tests were conducted by qualified personnel prior to any work and the atmosphere was certified as to the condition, be it safe, unsafe or requiring further ventilation. Such information had to be considered very carefully before any specific gas free certification was authorized, issued and posted, allowing personnel, without necessary protection and breathing apparatus, to enter and perform hot work.