PLASMA-MKS TEN’-MAYAK BAR EXPERT . ... EXPERIMENTS AND RESEARCHES . SCIENCE RESEARCH ON ISS RUSSIAN SEGMENT . ... BAR EXPERIMENT . ... BAR-RM kit . ... Development of a procedure to detect the signs of air leakage from ISS modules. ... Obtaining background conditions determining the existence of leaks in the working compartments of the space station, which will help to increase the space flight safety. ... Returned to Earth is BAR-RM kit with the record of the background characteristics database. ...