How to operate geomembrane thickness gauge? -Huaqiang Electronic Network

How to operate geomembrane thickness gauge?
Geomembrane thickness gauge [Operation steps

]:

1.

Sampling: The specimen was taken transversely along the longitudinal direction of the sample at a position approximately 1 m from the end, the strip being 100 mm wide with no creases and other defects.

2.

Sample conditioning and conditioning: according to the provisions of this regulation.

3.

The reference plate, sample and dial indicator should be free of dust and oil.

4.

Before the measurement, place the dial gauge on the reference value of the calibration table on the reference board. After the measurement, check whether the reference point changes.

5.

When measuring the thickness, gently place the side of the table below and wait for the pointer to stabilize before reading.

6.

When the geomembrane width is greater than 2000 mm, measure a little every 200 mm; the film (sheet) width is 300~

At 2000 mm, 10 points are measured at approximately equal intervals; when the film (sheet) width is 100 to 300 mm, a point is measured every 50 mm; when the film (sheet) width is less than 100 mm, at least 3 points are measured. For samples that have not been trimmed, measurements should be made 50 mm away from the edge.

Geomembrane thickness gauge [test results

]:

1.

The test results are expressed as the maximum and minimum thickness of the sample and the minimum value. After calculating the decimal point

4 digits, repaired to GB3170 to 3 decimal places, accurate to 0.001mm.

If required, follow this procedure

The specification of T1102-2006 calculates the standard deviation of the average thickness and the coefficient of variation Cvo.