Stalagmometer Tube Only 3.5mL

• Specifically designed for checking the surface tension of liquids

• Each tube is accurately calibrated to help quickly determine surface tension by the drop count method

• Each tube is graduated above and below the bulb

• The 2.5 and 5.0mL sizes allow flexibility in sample size of most liquid baths, while the 3.5mL size is used for more viscous applications

• Available individually or in a complete set of 3 tubes (1 of each size) in a protective case

• All tubes supplied with instructions for use