Humidity generators at CETIAT and CMA are compared with an optical dew-point hygrometer in the range from -40 °C to 60 °C.
Measurement points (°C): -40, -25, -10, 5, 15, 30, 45, 60
Transfer standard: MBW DP3-D-BCS-III
Transportation: In the aeroplane by the metrological expert from CMA
Measurements: CMA -> CETIAT -> CMA