可能市场上直接提供这种粘度管的厂商比较少,你可以直接联系我购买德国SCHOTT的稀释型粘度管 Viscometers for dilution viscometry Viscometers with suspended ball level designed according to the principle of the Ubbelohde viscometers for determination of the limit viscosity number of polymers. The limit viscosity number is determined automatically in combination with viscosity measuring instruments and piston burette, type AV made by SCHOTT Instruments.
filling quantity: 15--75 ml overall length: approx. 290 mm