ISO 868 Plastics and ebonite — Determination of indentation hardness by means of a durometer (Shore hardness) ISO 868 Plastics and ebonite — Determination of indentation hardness by means of a durometer (Shore hardness) Understanding ISO 868: Plastics and Ebonite — Determination of Indentation Hardness Blog June 20, 2024June 20, 2024 admin