Major performances : ▲LX-A Shore A digital display hardness tester is widely used in the hardness test of medium and low hardness plastic, various kinds of rubber, polygrease, leather, wax and so on.. Type A are applicable to the testing of low and medium hardness, and high-hardness materials. ▲This hardness gauge conforms to the regulations of GB/T531,GB2411, HG/T2489, JB6148. Technical Specifications ▲Measuring value: 0~100HA ▲Recommended range of measurement: 10~90HA ▲Size: 115*60*25mm ▲Needle stroke: 2.5mm ▲Needle head size: 0.79mm ▲Weight: ~0.13kg Use method: ▲When using single pointer models, one should place the sample in the solid plane, hold the hardness gauge, keep the pressure needle at a distance of at least 12 mm from the edge of the sample, smooth enough pressure in the pressure on the sample, and smoothly press on the sample to a full extent. One should press the pressure needle vertically to the sample, and until pressed to a full extent and contact the sample completely, then read the calibration value within one second. ▲At measuring points which are at least 6 mm away from each other, measure hardness values for five times, and calculate the average value(for microporous material, the distance between the measuring points should be at least 15 mm). In order to keep the stability of conditions and improve the accuracy of determination, one should install the hardness gauge on the same type of the measuring shelf from a complete production network. When using double pointer models to do measurement, one should rotate the supporting pointer to the wax, etc.