GB24218.2-2009 Test method for textile nonwovens - determination of thickness

The so-called thickness is the distance between the front and back sides of the nonwoven, that is, the distance between the reference plate where the nonwoven is placed and the presser foot that is parallel to it and applies pressure to the nonwoven
.

Test principle: the nonwoven cloth specimen is placed on the horizontal reference plate, and the specified pressure is applied to the specimen with the presser foot parallel to the reference plate, and the vertical distance between the reference plate and the presser foot is used as the thickness
of the specimen.

Testing instruments: PTT-03A thickness tester specimen preparation: according to the relevant provisions of the product standard or the agreement of the relevant parties to take sampling, and to ensure that there are no obvious defects and folds
on the specimen.

Test steps: 1.
Test under the standard atmosphere for testing
.

2.
Using the device, adjust the load on the presser foot to achieve a uniform pressure of 0.
5 kPa, and adjust the instrument indication value to zero
.

3.
Lift the presser foot, place the specimen on the reference plate in the state of no tension, make sure that the specimen is facing the center of the presser foot 4.
Lower the presser foot until it touches the specimen, and keep it for 10 s
.

5.
Adjust the instrument to measure the sample thickness, record the reading, which is millimeters (mm).


6.
Repeat the above steps
for the remaining 9 specimens.

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