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HYPROP manual - UMS

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Get ready to start a measuring campaign<br />

Figure 4-4<br />

The water level should be<br />

2 cm in the basket.<br />

Please place the sample<br />

ring incl. saturation bowl<br />

in the basket.<br />

The cutting edge shows<br />

upwards, thus the sample<br />

is saturated capillary from<br />

the reverse side.<br />

After 4-6 h fill new water<br />

inside the basket ca. 1cm<br />

below the upper rim of the<br />

sampling ring.<br />

Important note: Slightly lift up and tilt the sampling ring with<br />

saturation attachment inside the water filled saturation bowl. This<br />

prevents that air bubbles are trapped between soil sample and<br />

mesh fabric. Do this carefully so no soil particles are flushed out.<br />

The duration until the sample is saturated and all air is removed will<br />

depend on the soil type. When saturated, the sample surface will<br />

have a glossy appearance. Clayey soil will need the longest (several<br />

days).<br />

20/104

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