Flat ultrasonic baths with fast degassing and for sample preparation. Sample preparation in laboratory flasks. Fast degassing of samples at the push of the button. Homogenising. Same power density in all ultrasonic baths. Reproducibility of results in the different bath sizes. Uniform sonication of samples irrespective of size and arrangement of the flasks. Scope of delivery: DT 1028 F: 2 x flask holder GL 510 F and 250ml Tickopur R 33. Spring clamps EK or Flask holders ZF are necessary to fix the laboratory flasks.