Device for sampling (1) liquid comprised of at least one collection part (2), with at least one liquid collection surface (4) and at least one sampling container (3), with at least one inner chamber (6) which are intended to be temporarily connected to each other in conjunction with the sampling of liquid by the collection part (2) being partially inserted into the sampling container (3). The collection part (2) includes at least one tubular shaped conveying member (5) with a first outfall (8), which opens onto the collecting surface (4) and a second outfall (9), which when the collection part (2) and the sampling container (3) are connected to each other, open into the inner chamber (6) at a level lower than half the height of the height between the inner chambers (6) top edge (10) and bottom (11).
