Table 4.

Scientific Verification Tests (SVTs)

SVT	Duration	Pressure	Atmosphere	Temperature (T)	T extremes	Irradiation
Tray 1	December 2013–January 2014, 38 d	vacuum pressure at 4.1 × 10−5 Pa		T cycles between −25°C (16 h in the dark) and +10°C (8 h during irradiation)		The upper layers of each tray: UVR200–400nm with 1271 Wm−2 (5.7 × 105 kJ m−2) for 5924 min
						The lower layers of the trays were kept in the dark
Tray 2			Mars atmosphere (95.55% CO2, 2.7% N2, 1.6% Ar, 0.15% O2, and ∼370 ppm H2O at 1 kPa)	−23°C