Fabric hydrostatic pressure tester test operation

Fabric hydrostatic pressure measurement, is one of the main indicators to assess the waterproof performance of textiles, fabric hydrostatic pressure tester is a test instrument, Standard Group (Hong Kong) Co.
, Ltd.
is a textile testing instrument manufacturer, can provide a variety of textile testing instruments, welcome customers in demand in time
。 The waterproof performance is measured by measuring the static pressure height difference maintained by the test sample before water penetration, one side of the test sample is tightly clamped with a fixture, and the other side is exposed to the water pressure that basically increases at a constant speed, and the water column height required for penetration (according to the indicator paper) is the waterproofness of the sample under the test conditions, and the fabric hydrostatic pressure tester is designed accordingly
.
Fabric hydrostatic pressure tester is used to determine the hydrostatic pressure resistance of waterproof fabrics, suitable for tight fabrics, such as canvas, tarpaulin, tarpaulin, tent cloth, rainproof clothing cloth, etc.
, and also suitable for the determination
of hydrostatic pressure resistance of high-efficiency air filter paper.
Test standard: GB 4744 "Determination method for the impermeability of textile fabrics" hydrostatic test method" Test operation: Cut the test fabric into 100mm×100mm size samples, and then put the sample into the fixture, screw the fixture and fix it
.
Press the rise button, the metal container containing 700ml of water begins to rise at a uniform speed driven by the motor, increases the water pressure of the specimen in the fixture, and measures the penetration
of water through the plastic window of the fixture to observe the color change of the indicator paper covering the filter paper sample.
When the initial signal of the color change of the indicator paper (from blue to pink) appears, immediately read the water level height of the ruler, expressed in Pa (mmH20), and press the rise button again to stop the metal container from rising
.
Record the readings as test data
for the water impermeability of the filter paper.
Open the fixture, take out the specimen and indicator paper, dry the stretcher window of the fixture with a soft cloth, and check the water level
in the fixture.
Refill the water
if needed.
Reposition the fixture with another specimen and indicator paper and repeat the test
procedure above.
Advantages: 1.
The company has been engaged in testing instruments for more than ten years and has a strong after-sales service team; 2.
Be able to deal with various problems in a timely and rapid manner, and relieve customers' worries; 3.
Complete spare parts to solve the trouble of long delivery time of ordered spare parts; 4.
Provide outsourcing maintenance services; 5.
Long-term supply of various commonly used testing instruments; 6.
Keep up with the update of industry standards and provide test instruments
that meet new standards in a timely manner.