Elastomers and polymer materials’ hardness

Determination / verification of elastomer hardness on standard samples (or products) in the delivery stage, as well as following specified ageing tests.
 

We conduct hardness measurements using the following methods 

  • Sh A - measurement on standard samples of thickness great than 4 mm,
  • Sh AM (micro method) - measurement on 2 mm thick samples cut out from the product,
  • Sh D - measurement on standard samples of thickness great than 4 mm,
  • IRHD-M (micro method) - measurement on 2 mm thick samples cut out from the product,
  • Rockwell (hardness scales HRE, HRL, HRM, HRR) - measurement on 4mm thick samples cut out from the product.
 

Equipment

  • Zwick/Roell 3105 digi test hardness tester with interchangeable measuring heads
  • Zwick/Roell ZHU250 hardness tester
  • Rockwell’s A 200 hardness tester
 

Norms

  • PN-EN ISO 868
  • ISO 48
  • ISO 7619-1
  • ASTM D2240
  • PN-EN ISO 2039-1
  • PN-EN ISO 2039-2
Document No. Title/Description
PN-EN ISO 868 Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness)
ISO 48 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD)
ISO 7619-1 Rubber, vulcanized or thermoplastic - Determination of indentation hardness - Part 1: Durometer method (Shore hardness)
ASTM D2240 Standard Test Method for Rubber Property - Durometer Hardness
PN-EN ISO 2039-1 Plastics - Determination of hardness - Part 1: Ball indentation method
PN-EN ISO 2039-2 Plastics - Determination of hardness - Part 2: Rockwell hardness