ST-1568Automatic engine coolant freezing point tester according toDesign and manufacture according to the requirements specified in SH/T0090 "Determination of Freezing Point of Engine Coolant"Under the specified cooling conditions, when the tested sample is cooled to a certain temperature and solid precipitates, the temperature rises again, and the highest temperature reached by the rise is the freezing point，Suitable for measurementThe freezing point of engine coolant and engine concentrate,Widely used in departments such as petroleum, chemical, power, commercial inspection, universities, and scientific research.