Determine soil samples' pF value in the range pF 0 - 2.0 of with this sandbox set. It can hold up to 40 soil sample rings measuring 53 or 60 mm in diameter, which allows for large scale measurements.
The box is suitable for sample rings with a diameter of 53 or 60 mm and a height of 5 cm. A correctly installed sandbox can last for years without use of additional consumables.
The standard sandbox set includes:
Additional requirements
A correct determination in the sandbox uses undisturbed samples in sample rings. To obtain these samples, a soil sample ring kit is required. The laboratory should be equipped with a drying oven and an accurate balance. The table on which the instrument is placed should be at least 90 cm high, level and free from vibration.
Determination process
The box is filled with synthetic sand that is then completely saturated. There should be no air bubbles in the sand or in the piping of the system. The pre-saturated and weighed sample rings with soil are placed in the box. Subsequently, a certain level of suction is exerted on the samples by means of the regulator, causing the samples to lose moisture. At equilibrium, i.e. when the samples no longer lose moisture as the suction pressure is applied, the final weight is recorded. Subsequently, the determination is repeated with an increasing suction.
Applications
| Sandbox for pF determination | |
|---|---|
| Maximum number of samples | 40 |
| Measuring range | 0 - 2.0 pF |
| Sample specification | Undisturbed |
| Measured parameters | pF |
| Sample stored in | Ring |
| Weight | 198 lbs | 90 kg |
| Package size | 57.5 x 24.8 x 22 in | 146 x 63 x 56 cm |
