ST-1552 multifunctional oscillator complies with GB/T17623 、DL429.4 ， This instrument is mainly used for oscillation degassing in the determination of dissolved gas composition in insulating oil by gas chromatography, constant temperature, timing, oscillation in the determination of water-soluble acids in oil, and constant temperature and timing oscillation in other physical and chemical experiments. Widely used in departments such as petroleum, chemical, power, environmental protection, universities, commodity inspection, and medicine.