Two papers have been prepared, reporting on experimental investigations into the influence of water sprays on gas explosions. The water sprays that were used in these experiments were produced by nozzles that are very commonly used on offshore facilities. The experiments addressed the influence of turbulence generated by these systems on the course of gas explosions and the mitigating effect that water sprays may have on gas explosions under certain circumstances. The second paper reports on mitigation of gas explosions by water-spray systems. The present paper reports on the influence of turbulence produced by water sprays, investigated in a 1.5 m(3) rectangular box. The flame speeds found in the presence of turbulence due to various types of nozzles were approximately 1.4 to 2.3 times the flame speeds without water sprays. The properties of the turbulence appear to be related to the dimensions of the chamber in which the experiments were performed and not to the dimensions of the droplets.