Basic Pressure Plate Apparatus
For many, their interests are concerned in the optimum plant growth range of 0-5 Bar soil suction range. For engineers it's the wet zone where soil behavior becomes unstable. The 5 Bar Pressure Plate Extractor is the choice when there's a need for careful and precise measurement of water retention, prepping for stability tests or pore water extraction. This versatile Pressure Extractor also finds application in the calibration of various moisture-measuring equipment assuring that the readings match reality of soil moisture by volume or soil water tension. Easy to clean the epoxy coated interior and exterior complete with safety relief valve.
Pressure Membrane Apparatus
The Pressure Membrane Extractor incoporates disposable cellulose membranes in the extraction of water from soil samples over a pressure range of 0 to 15 bars. A compression diaphragm in the lid holds the samples in firm contact with the membrane, ensuring proper hydraulic contact needed for the extraction process. A common problem in soils research is determining water retention curves for various soil types. The problem is that many soils around the world that provide excellent plant growth potentials are "shrink - swell" soils. This applies to non soil experiments where the material under study "curls" as it dries. The model. The cellulose membrane material is a pure cellulose and has a pore size of 24 angstrom. The cellulose membrane can withstand over 10,000 kPa bubbling pressure. The Extractor can test up to 6, 2” diameter x 0.39 “ (2.5 x 1 cm) high samples and operates in the 0 to 1500 kPa (0 to 15 bar) soil suction.
Pressure Plate & Membrane Apparatus
The characterization of soils according their moisture holding capacities and moisture flow retention characteristics is essential for the development of effective irrigation and plant stress management for the commercial growing of food crops. This is the quintessential basic laboratory equipment needed for scientific determine soil water release / retention curves. Knowing the stress / water relationships directly effects yield and quality of the crop.