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https://www.mikrometry.com/how-to-use-rubber-shore-hardness-gauge-properly.html

Rubber thickness gauge
Ⅰ. How to use Shore hardness gauge

1. Place the sample on a solid surface, hold the Shore hardness gauge, and press the needle of the middle hole at least 12mm away from the edge of the test block.

2. Press the pressure foot on the sample smoothly without any vibration, and keep the pressure foot parallel to the surface of the sample so that the pressure needle can be pressed into the sample vertically. The applied force must be just enough to make the pressure foot and the sample completely contact, unless otherwise specified, the shore hardness meter must be read within 3 seconds after the pressure foot and the sample are fully touched.

3. If it is other interval time reading, it must be stated that the hardness value shall be measured 5 times at different positions with a distance of at least 6mm between the samples, and the rubber test result shall be the final average value.

Ⅱ. Common sense of maintenance of Shore hardness gauge

1. The lifting shaft and the bottom of the worktable on the fixed-load measuring rack should be wiped clean frequently and coated with a small amount of anti-rust oil to prevent rust.

2. After using the Shore hardness gauge, put it into the instrument box or instrument box and place it in a dry place to prevent moisture.

3.After the durometer gauge has been used 35,000 times, it is recommended to check the relationship between the spring pressure and the pointer scale and the shape and size of the pressure needle every 10,000 times or so.

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