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Protective clothing acid and alkali resistance test equipment is used to determine acid and alkali impermeability of permeable acid and alkali protective clothing.T7ETextile Testing Instruments, Testing Equipment Manufacturer
T7ETextile Testing Instruments, Testing Equipment Manufacturer
Application：T7ETextile Testing Instruments, Testing Equipment Manufacturer
GB 24540-2009 protective clothing for acid and alkali chemicals.T7ETextile Testing Instruments, Testing Equipment Manufacturer
T7ETextile Testing Instruments, Testing Equipment Manufacturer
Working principle:T7ETextile Testing Instruments, Testing Equipment Manufacturer
The resistance of the test solution to penetrate the fabric is expressed by the hydrostatic pressure of the fabric. Under the atmospheric pressure of 101.325kPa, the lower surface of the sample bears a continuously rising liquid pressure. Until there are three seepage points, and record the height of liquid column at this time, which is called hydrostatic pressure resistance of fabric.T7ETextile Testing Instruments, Testing Equipment Manufacturer
T7ETextile Testing Instruments, Testing Equipment Manufacturer
Technical Parameters：T7ETextile Testing Instruments, Testing Equipment Manufacturer
1. Test solution: 80% concentrated sulfuric acid with different concentrations of acid and alkaliT7ETextile Testing Instruments, Testing Equipment Manufacturer
2. Rising rate of acid fracturing test solution: (60 3) cm/minT7ETextile Testing Instruments, Testing Equipment Manufacturer
3. Maximum pressure: 150mm liquid column Maximum acid pressure: more than 150mmH2SO4(80%)T7ETextile Testing Instruments, Testing Equipment Manufacturer
4. Measuring range: 0 ~ 150 mm liquid column 0 ~ 0～150 mmH2SO4(80%%)T7ETextile Testing Instruments, Testing Equipment Manufacturer
T7ETextile Testing Instruments, Testing Equipment Manufacturer
Preparation：T7ETextile Testing Instruments, Testing Equipment Manufacturer
Three samples were taken from the finished protective clothing, with a diameter of 32 mm.T7ETextile Testing Instruments, Testing Equipment Manufacturer
T7ETextile Testing Instruments, Testing Equipment Manufacturer
Steps：T7ETextile Testing Instruments, Testing Equipment Manufacturer
1. the reagent contacts the sample from vertically belowT7ETextile Testing Instruments, Testing Equipment Manufacturer
2. Continuously and stably pressurize the reagentT7ETextile Testing Instruments, Testing Equipment Manufacturer
3. Observe the sample and record the hydrostatic pressure when the third liquid bead appears on the sampleT7ETextile Testing Instruments, Testing Equipment Manufacturer
4. Each sample shall be tested three times, and the static pressure value of the sample shall be obtained by taking its arithmetic mean value.
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