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Membrane Transpiration Accessory Model AF008-02

 

Model AF008-02 Membrane Transpiration Accessory converts the AquaFlux into an instrument for measuring water vapour transpiration through membranes. The method is similar to the ASTM-96 standard method, but uses flux sensing rather than weight loss measurement. This speeds up the measurements and provides detailed information about dynamic changes during the approach to steady-state transpiration.


 

This accessory consists of a clamp to seal a 7mm diameter area of the membrane into the water vapour path, with an AquaFlux measurement head above and a standard 250mL wide-mouth glass jar below. The membrane clamp can accommodate sample diameters in the range 10 - 51mm and sample thicknesses up to 3mm. A thermostatted water bath (not supplied) can be used to control of source conditions.

Click here for a conference paper showing some examples of its use.

 

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