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Application areas: It is suitable for testing polymer materials such as polyester PET, PBT, nylon PA6, PA66, polycarbonate PC, polyvinyl chloride PVC, polyacrylonitrile PAN, polyacrylamide PAM, polyvinylidene fluoride PVDF, silicone-based materials, acrylic glass PMMA, polylactic acid PLA, PGA, cellulose CA, MCC, and fiber pastes. It fully meets international and domestic standards such as ISO1628, ASTMD4603, GB/T14190, ISO307, ASTMD789, GB/T12006, HB/T2234, GB/T3401, GB/T12005, GB17514, GB/T28610, and pharmacopoeial standards. Product description: The high accuracy in measuring viscosity with the CT series of high-precision constant temperature baths requires a constant temperature environment! The temperature of the bath remains constant, with uniform temperature throughout the entire bath. Its unique design ensures that the temperature uniformity across the bath is above ±0.01°C, providing a highly stable environment for viscosity experiments. The bathtub is designed using a dual-chamber principle along with a unique circulation system: it features a mixing chamber and a measuring chamber, the liquid level in the measuring chamber remaining constant despite the evaporation of the bath water. The partition between the two chambers can be removed easily for routine cleaning and maintenance, and a drain valve is installed at the bottom to facilitate cleaning. The temperature controller is an original imported unit, offering high-precision temperature control along with adaptive PID regulation capabilities. Safety: In addition to having a low water level alarm function and high-temperature cut-off protection, it is equipped with an air leakage protection switch to ensure safety during use. The transparent window and lighting design allow direct observation of the inside of the bathtub as well as the testing process ； It should be noted that when the temperature is below 20°C, dew formation on the window glass can affect visual observation. The inner tank is designed with stainless steel to maximize its service life. Multi-station design, capable of supporting automatic or manual testing at 1–6 test stations. Key technical parameters: Model, Temperature stability accuracy, Temperature uniformity, Heating power, Operating temperature, Dimensions (CM). CT-2: ≤±0.01℃, ≤±0.01℃, 1000W, 10–90℃, Length: 65, Width: 28, Height: 56. CT-4: ≤±0.01℃, ≤±0.01℃, 1200W, 10–90℃, Length: 85, Width: 28, Height: 56. CT-6: ≤±0.01℃, ≤±0.01℃, 1200W, 10–90℃, Length: 102, Width: 28, Height: 56. A flow-through refrigerator design is available, with two different cooling agents to meet various customer needs. Semiconductor refrigeration: It features a long operational life (although with low cooling capacity); it can be used for constant-temperature experiments in the range of 25°C to 50°C, and can operate continuously 24/7 throughout the year. Compression refrigeration: It can achieve high cooling efficiency, making it suitable for laboratories that operate during the day. It can also be used with other tanks that require a cold source in order to create lower temperatures; it is capable of reducing 10 liters of anhydrous ethanol to sub-zero temperatures in a short time.