ISO 48-3 Rubber, vulcanized or thermoplastic — Determination of hardness — Part 3: Dead-load hardness using the very low rubber hardness (VLRH) scale
ISO 48-3 establishes test methods for determining the hardness of rubber and elastomeric materials using Shore A and Shore D durometers. The standard applies to both vulcanized and thermoplastic elastomers, specifying measurement procedures, instrument specifications, and environmental conditions required for reliable and reproducible results. Hardness is measured through the penetration resistance method, whereby an indenter is pressed into the material to quantify its local deformation resistance, providing a standardized assessment of material stiffness across different elastomer formulations.
ISO 48-3 Rubber, vulcanized or thermoplastic — Determination of hardness — Part 3: Dead-load hardness using the very low rubber hardness (VLRH) scale
ISO 48-3 establishes test methods for determining the hardness of rubber and elastomeric materials using Shore A and Shore D durometers. The standard applies to both vulcanized and thermoplastic elastomers, specifying measurement procedures, instrument specifications, and environmental conditions required for reliable and reproducible results. Hardness is measured through the penetration resistance method, whereby an indenter is pressed into the material to quantify its local deformation resistance, providing a standardized assessment of material stiffness across different elastomer formulations.
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