Asker X High Performance Hardness Testers from Hoto Instruments

Asker X High Performance Hardness Tester Kit above

• Model X-A  Type A Normal rubber
• Model X-D  Type D Hard rubber and plastics
• Model X-C  Type C Soft rubber and sponge
• Model X-F  Type F Urethane foam, sponge and polystyrene foam

Asker Hardness testers from Hoto Instruments feature portable design, ease of operation, non-destructive measurement and optional peak indicators.

The Asker High Performance series hardness tester has an accuracy of  ±.75 point and is available in Type F for soft materials like sponge rubber and urethane foam.

Asker Type F hardness testers use their own weight to determine hardness

Hardness Tester Operation

As the hardness tester is pressed against the sample, the material resistance force and indentor spring load balance. The depth of the indentor is measured, which provides a measure of the material's hardness. Values are based upon a 100 point scale (accuracy ±.75 point). However, as time elapses the indicator will "creep" back so that a reading taken a few seconds after the tester makes contact with the sample will be less than the peak reading. The optional peak indicator helps to more closely monitor the difference between peak and "creep" in hardness tests.

Reference Specimens These test blocks are convenient references to the durometer's operating condition. Available for type D (80 points) and type A (70 and 50 points). Model Description Price RS-5070A For Type A 50 & 70 point $120 RS-50A For Type A 50 point $60 RS-70A For Type A 70 point $60 RS-80D For Type D 80 point $60 RS-7477C For Type C 74-77 point $60

Asker Reference Specimens from Hoto Instruments Model: RS-5070A - $120 RS-50A - $60 RS-70A - $60 RS-80D - $60 RS-7477C - $60 Shipping Weight: 5 lbs