The Hauben water permeameter apparatus is a laboratory test method for establishing the coefficient of permeability or hydrologic conductance of water (vertically) through an undisturbed water-saturated soil sample.
The method is suitable for fine-grained soil, especially silt and clay.
This equipment measures the soil permeability in accordance with NEN 5124, EN17892-11 and ASTM D5084 - 10 Laboratory determination of permeability of soil by the falling head method considering the following restrictions:
- No physical sample load restricting sample swelling;
- Falling head height max 300 mm;
- Scale interval reading 5 mm;
- Please consult instrument specification for detailed information in case of accreditation.
The principle of the measurement is based on the ‘Falling Head Method’. A head of water is superimposed on the undisturbed water-saturated soil sample.
The water will flow through with a certain speed per unit time
Applications
- Erosion, drainage, irrigation;
- Agriculture research;
- Geo-Hydrologic research;
- Environmental research;
- Basic material research.
User groups
- Laboratories;
- Research institutes;
- Educational institutes, Universities.
Features
- Easy manual operation;
- Proven accurate measurement principle;
- Efficient multi-sample handling using the fast-exchange sample holder;
- Up to 15 samples per container;
- Sample sizes, Ø 60x56 h 40.5 mm (optional: Ø 53x50 h 51 mm);
- Excellent price-quality ratio;
- Developed in cooperation with Christian-Albrechts University, Kiel.
| Container volume | ~ 3 litre |
| Burette height | 300 mm |
| Burette scale interval | 5 mm |
| Burette 1 | Ø = 5 mm (inside) |
| Burette 2 | Ø = 4 mm (inside) |
| Burette 3 | Ø = 3 mm (inside) |
| Core ring size (standard) | Ø = 60 x 56 h = 40.5 mm (sample size Ø 56 h 40.5 mm; A = 2463 mm²) |
| Core ring size (optional) | Ø = 53 x 50 h = 51 mm (sample size Ø 50 h 51 mm; A = 1963.5 mm²) |
| Operating temperature | 15-35 ºC (constant temperature is highly recommended) |
| Dimensions | instrument 30 x 25 x 90 cm (width x depth x height) sample container/tray 61 x 40 x 23 cm (15 samples) |
| Weight | approx. 19 kg. (all-in) |
