Hardness Tester HGiB Shore D
The pocket testers are used predominantly for quick, mobile hardness testing to Shore D for hard rubber, perspex, hard plastic materials, rigid thermoplastics, polystyrene, pressure rolls, vinyl sheets, Resopal, etc.
With this hardness testing method, a steel needle in the form of a point is pressed into the material to be tested. The amount of the penetrating resistance is indicated at a scale. The methods are standardised to DIN 53505, ASTM D 2240 Part 20 and BS 903.
The tester contains a test needle on which the spring force acts whose load increases for Shore D from 1335 to 4450 cN when the needle which is initially protruding by 2.54 mm is pressed back by this distance.
During the test process, the tester is pressed jerk-free with the prescribed contact force against the material to be tested until the surface is flush. The hardness can be read off after approx. 3 seconds of contact between the tester and the material to be tested.
|Scale value:||1Shore hardness unit|
|Dimensions:||100 mm high, 70 mm wide, 20 mm deep|
|Weight with case:||approx. 360 g|
|Test element:||Tip 30º|
|Measuring range:||30 ... 100|
|Shore D Spring force:||1335 ... 4450 cN|
|Contact force:||approx. 50 N|
|Error limit:||+/- 1 Shore D|