Search of source of toxic benzene was resumed on the international space station after the Russian cargo ship "Progress" delivered on MKS the new equipment, told NASA.
in the salon " Progress MS-15 ", docked with the station on July 23, there were two American Drager gas detector and 90 test records to search For a source of benzene.
Benzene found in the air of the ISS in April. As stressed in the " Roskosmos ", its concentration did not exceed maximum permissible norm and do not threaten the crew.
The source of benzene until now not found. To reduce its concentration, the crew has installed carbon filters.
in June, the only device For locating the source of benzene - American analyzer air quality AQM-1 - broke when conducting measurements in the Russian segment of the station, after which the Search had to stop for a while.
Benzene is a colorless liquid with a specific sweet smell. Included in the fuel composition and is used For the production of drugs, plastics, synthetic rubber and dyes. Toxic and carcinogenic.
currently work on the ISS Russian cosmonauts Anatoly Ivanishin and John Wagner, as well as American astronaut Christopher Cassidy, Douglas Hurley and Robert Behnken.