ISO 19095-3:2015 PDF

Overview

ISO 19095-3:2015 specifies standardized test methods for evaluating the adhesion interface performance in plastic‑metal assemblies. It is Part 3 of the ISO 19095 series and focuses on practical, repeatable mechanical and sealing tests to characterize how well plastics bond to metals under controlled specimen conditioning and test conditions. The standard is intended to improve traceability and comparability of interface performance data used in safety‑critical sectors such as automotive and aerospace.

Key topics and requirements

• Scope and conditioning

  • Applies to test methods for the plastic‑metal adhesion interface; specimen conditioning follows ISO 19095‑1.
  • Specimens must be free from twist, surface defects and have mutually perpendicular parallel surfaces; nonconforming specimens are rejected or machined.

• Mechanical test methods included

  • Tensile strength: machine capacity selected so rupture occurs between 10% and 80% full scale; recorded force accuracy within 1%; typical crosshead speed 10 mm/min; breaking stress = breaking load / joint area (MPa).
  • Tensile lap‑shear strength: uses tensile machine plus specimen retainer; retainer design minimizes friction (metal grip gap ≈ specimen + 0.1 mm; plastic grip gap