FIELD: sampling.SUBSTANCE: invention relates to the selection of a solidified sample of a molten metal. Sample sampler from a molten metal bath, in particular a molten steel bath, includes a sampling chamber assembly having a cover plate and a body. Housing has a submerged end provided with an inlet tube and includes a sampling cavity including a distribution zone, an analysis zone and a vent zone. Sampling cavity is calculated into four adjacent segments, each of which has a corresponding length and depth. Four adjacent segments satisfy the formula: (L/D)+(L/D)+(L/D)+(L/D)>25.EFFECT: ensuring the optimal geometry of the carrier tubes, obtaining the necessary surface for analysis.8 cl, 12 dwg