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Specification: ◆Measurement range: 10-90HA ◆Size of pinhead section :0.79mm◆Pressure Needle Range:0-2.5mm◆Test force 10 (N). Operation Guide: ●The Shore A Durometer: ◆1.Before using, check that the display screen of the hardness tester should show "000" in the free state (if "00" is not shown, you can press the ZERO key to return to zero). ◆2.When the hardness tester is pressed on a flat base level (glass or metal platform), the display screen should show 100 ±1 degree. If it cannot be accurately displayed, the hardness tester cannot be used, and it is best to send it to the factory for adjustment. ◆3.Rubber samples shall be prepared in accordance with the requirements of GB/T531, plastic samples shall be prepared in accordance with the requirements of GB2411, and samples of rubber microporous materials shall be prepared in accordance with the requirements of HG/T2489.★(Tips): If possible, the rubber sample shall be adjusted at the laboratory standard temperature before testing according to the GB/T2941 and GB/T2918 regulations, and then be determined.
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