The 1905 Slim Tube Soil Water Sampler is a small-diameter sampler designed for taking small-volume samples or for use where installation space is limited. The Slim Tube Sampler has a 7/8" (2.2 cm) outside diameter and is supplied complete with a 1 bar (100 kPa) high-flow, screw-in porous ceramic cup, screw-top extraction cap, and clamping ring. Extension tubes can be added to increase the depth of operation. Lengths from 6 inches to 60 inches.
Weight: 0.3-1.5 lbs (0.14-0.68 kgs)
1905 water soil samplers Features
Soilmoisture’s Soil Water Samplers, which are also referred to as “suction lysimeters” or “lysimeters”, have been in general use around the world for many years.
Soil water is held largely under a state of tension (negative pressure) within the soil by capillary forces. The capillary force is the sum of the adhesive and cohesive forces. The adhesive force is characterised as the attraction of water for soil solids (soil and organic matter). Cohesive force is characterised as the attraction of water for itself. Adhesive force is far greater than the cohesive force.
Water is naturally attracted to soil particles (by its adhesive quality) and “sticks” to the surface of each particle and in the various sized “capillary” spaces or “pores” between the soil particles. When the soil is very wet, the large pores fill with water.
This “excess” water has no direct surface contact with the soil and is held cohesively, one water molecule to another, and can move quite freely.
As a soil dries out, the “excess” water first evaporates as it requires less energy to break the cohesive bonds. The remaining water, held tightly inside the capillary spaces by adhesive qualities, requires more energy to be removed from the soil.
||SLIM TUBE SOIL WATER SAMPLER, 6 inch length.|
|1905L12||SLIM TUBE SOIL WATER SAMPLER, 12 inch length.|
|1905L24||SLIM TUBE SOIL WATER SAMPLER, 24 inch length.|
|1905L60||SLIM TUBE SOIL WATER SAMPLER, 60 inch length.|