ISO standards download ISO 527-4:1997 pdf download – Plastics – Determination of tensile properties – Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites ISO 527-4:1997 pdf download - Plastics - Determination of tensile properties - Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites. 3 Principle See IS0 527-1, clause 3. 4 Definitions For the purposes of this... 02-20 Download Now