F Type Sponge hardness tester
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F Type Sponge hardness tester is suitable for the determination of soft foam, polyurethane foam rubber products’ hardness. And it will be different with the other hardness tester In the aspects of using. When using the presser foot directly contact to the sample, and see its sown weight as force measurement load.
Conforms Standards: GB/T531-99, GB2411-80, hg/t2489-93, JJG304-2003.
1. Scope of pressure needle route: 0~2.5millimeters.
2. The scale value: 0-100 degrees.
3. The force of pressure needle end: 550mN~4300mN (56~438.5g).
Held the middle of the instrument located the hardness tester gently on the plane Specimens which is bigger than presser foot (or specimen). Reading out the value in 1 second when durometer’ presser foot contact with the sample
smoothly. And the tick of pointers is the hardness value of sample (specimen). In order to improve the accuracy of measurement, you should put the sample on a flat plate glass or plate. Each measuring point should be measured only on
When the durometer presser foot is in the Free State, it points "0".The pressure needle end and the pressure foot flat is in close contact with the glass surface, the indication should be "100" If the Durometer’ pointer cannot show “0’ and “100” when checking, adjust it to“0’and“100