Silicone tube humidity generator

Robert Berg (1) , Nicola Chiodo (2) , Eric Georgin (3)

1 NIST - National Institute of Standards and Technology [Gaithersburg]
2 LCM - Laboratoire commun de métrologie LNE-CNAM
3 LNE CETIAT

Abstract. We describe the model and construction of a two-flow (or divided-flow) humidity generator, developed at LNE-Cnam, that uses mass flow controllers to mix a stream of dry gas with a stream of humid gas saturated at 28 ∘C. It can generate a wide range of humidity, with mole fractions in the range of 0.7×10-6

Mots clés: Metrology; humidity; silicone; humidity generator; permeation

Domaines: Physique [physics]

Robert Berg, Nicola Chiodo, Eric Georgin. Silicone tube humidity generator. Atmospheric Measurement Techniques, 2022, 15 (3), pp.819-832. ⟨10.5194/amt-15-819-2022⟩. ⟨hal-03946893⟩