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Alcohol smell on ISS began dissipating after Crew Dragon undocked
by Staff Writers
Moscow (Sputnik) Mar 13, 2019

File image of Crew Dragon docked at the ISS just prior to undocking.

The smell of isopropyl alcohol on the International Space Station (ISS) that appeared after the arrival of US unmanned spacecraft Crew Dragon last week, has started to dissipate since the demo capsule undocked from the station, a source in the Russian rocket and space industry told Sputnik.

"Samples of air in the station's atmosphere, taken after the Dragon 2 [Crew Dragon] spacecraft undocked [from the ISS], have shown that the isopropyl alcohol concentration has started to fall, which proves the theory that the Dragon 2 spacecraft itself was the source of increased [isopropyl] concentration", the source said.

The source added that air purification systems were still on at the ISS.

Another source in the industry told Sputnik on 5 March that air analysers had recorded a high concentration of isopropyl in the air circulating within the ISS soon after the Crew Dragon docked with it on 3 March. After the ISS crew turned on air purification systems, the isopropyl concentration dropped from 6 milligrams per cubic meter to 2 milligrams. Before the Crew Dragon arrived, the isopropyl concentration had not exceeded 0.1 milligrams per cubic meter.

However, a different source in the industry told Sputnik earlier in the week that the high concentration of isopropyl initially registered did not pose a threat to the crew members' health but might have a negative impact on the station's equipment.

The Crew Dragon left the station and successfully returned to Earth on 8 March.

Isopropyl alcohol is a colourless liquid with a strong smell, used in cosmetics, household chemicals, perfumes and medicine as a sanitizing agent. Prolonged contact with increased concentrations of isopropyl alcohol fumes may provoke headaches along with eye and respiratory irritation.

The current ISS crew is comprised of Russian cosmonaut and Commander Oleg Kononenko, Canadian astronaut David Saint-Jacques, and US astronaut Anne McClain.

Source: Sputnik News

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Baikonur, Kazakhstan (SPX) Mar 11, 2019
Energia corporation specialists working at the Baikonur launch site continue preparing the integrated launch vehicle with the crew transportation spacecraft (CTS) Soyuz MS-12 for its launch to the International Space Station (ISS). Preparations for the launch scheduled for March 14, 2019, from the launch pad No.1 ("Gagarin's launch pad"), are under way in the processing facility of the launch site. In accordance with the pre-launch processing schedule, on March 6 the spacecraft was subjected ... read more

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