Abstract: A specimen carrier is located in a clearly defined flow path of a treatment liquid in a treatment chamber. This treatment chamber is integrated with a conveying unit to one structural unit. For a realistic representation of the treatment operation the conveying unit comprises a pump having a rotating conveyor part for generating a non-pulsating flow. This flow can thereby be reversed by a reversal of the sense of rotation of the conveying part.
Abstract: The invention concerns an improved device for testing textile samples in the laboratory. The device includes a tank holding a heating liquid. Test containers attached to test container holders are placed in the tank and containers and holders rotated. Rotation is achieved by transmitting the drive from rolls positioned on drive shafts to drive wheels forming an integral part of the container holders.