Glass capillaries with different inner diameters are available for your bubble pressure tensiometer to enable convenient measurement at different viscosities. The hydrophobic inner wall of the coated capillaries prevents liquid from being drawn into the capillary. This prevents falsification of the measurement results.
| Name | Inner diameter | Coating |
| SH2030 | ca. 0.2 mm | uncoated |
| SH2031 | ca. 0.2 mm | hydrophobized |
| SH2037 | ca. 0.3 mm | hydrophobized |
| SH2038 | ca. 0.35 mm | hydrophobized |
| SH2039 | ca. 0.4 mm | hydrophobized |
| SH2040 | ca. 0.45 mm | hydrophobized |
The SH2030 and SH2031 capillaries are included once each in the scope of delivery of the measuring instrument.
The TO2032 coating set is available from us for occasional renewal of the hydrophobic inner coating.