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Tips For Hydrostatic Head Testing

    The Hydrostatic Head Test apparatus consists essentially of an inverted conical well equipped with a coax-ial ring clamp to fasten the cloth specimen un-der the well bottom.Hydrostatic Head Tester is used to test the resistance of permeability of synthetic blood for materials used in protective clothing. Dynamic, static, custom mode for different test requirements. One side of the specimen is subjected to a hydrostatic pressure that increasing at a constant rate, then will be ended until three points of leakage appear on its other side.



   The Hydrostatic Head test instrument contains a high precision pressure control system, which could produce the test pressure in an internal water tank. Real-time pressure curve displays on the screen. Easy to use of build-in test mode for different standards.
                         
   The apparatus introduces water from above the specimen over an area 114 mm in diameter and at a rate of 10.0 – 0.5 mm of hydrostatic head per second. A mirror is affixed below the specimen to enable the operator to ascertain penetration of the speci-men by drops of water. A valve is provided for venting the air in the well.

 It uses anelectronically controlled pump to apply hydrostatic pressure at 60 mbar/min (selectable) to the bottom side of the fabric. A reservoir with a circular test area of 100 – 5 cm2 (»4.5 in. diam) contains distilled or deionized water which is applied to the fabric surface. The fabric specimen is secured with a coaxial clamp which is equipped with viewing lamps to aid the operator in seeing the penetra-tion of water droplets. A digital readout dis-plays the pressure. An RS232 data port is provided to transfer the test results for storage and statistical analysis.

For more information about our testing instrument, please contact

· +86-21-6780 0179

· info@qinsun-lab.com

· or leave your comments below


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