LimsPulse
Materials & polymer testing

Shore durometer

Presses a spring-loaded indentor into rubber or plastic and reads how far it goes in on a 0–100 scale. Shore A is used for soft rubbers and elastomers; Shore D for hard rubbers and rigid plastics.

  • Rubber & elastomers
  • Polymers & plastics
  • Automotive
  • Footwear
  • Packaging
  • Medical devices
Photo of a Shore durometer
Photo: Miladfarhani, CC BY-SA 4.0 (cropped), via Wikimedia Commons
CALIBRATION

Durometer calibration procedures

Indentor and spring force verification

Checks the indentor extension and shape, and the spring force at several points across the scale against the force the standard sets for each reading.

Open procedure
QUALIFICATION

Instrument qualification (DQ · IQ · OQ · PQ)

  1. 01

    DQ

    Choose the scales (A, D or others), analogue or digital readout, and whether an operating stand is needed to meet ISO 868 / ISO 48-4 / ASTM D2240.

  2. 02

    IQ

    Record serial numbers and the calibration certificate; install the stand on a stable, level bench.

  3. 03

    OQ

    Verify indentor extension, indentor geometry and spring force at several points across the scale, and the stand mass and speed.

  4. 04

    PQ

    Measure reference test blocks of known hardness and confirm readings within their stated tolerance before routine use.

In LimsPulse · Calibration Management

Keep every Durometer in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how