HY4640 Viscosity Tester is used to determine the viscosity of Poly(vinyl chloride) resins in dilute solution using capillary viscometers. This machine conforms to ISO 1628, ISO307, GB/T 3401, GB/T 14190, etc. This instrument complies with the following international and industry standards. ISO: ISO 1628. GB/T: GB/T 3401, GB/T 14190. It consists of water bath and viscometers. High accuracy of temperature control, small temperature gradient, stable performance. LED display temperature, more intuitive. With refrigeration function. Technical Specification Model: HY4640Volume of water bath400mm×250mm×320mmConstant temperature 25℃±0.05℃ Temperature fluctuation: ±0.05℃ Display: error ±0.05℃Ubbelohde viscometer (non-diluted)5pcs of 4-0.705 viscometers (other type of viscometers optional) Heating power: 1kw Refrigerating: capacity 300w Environment: temperature 21℃±3℃ Working position: 5 Power supply: AC220V, 50Hz Dimensions: 800mm×430mm×480mm