ISO 527-2:2025
2025-06
ISO 527-2:2025
What is ISO 527-2?
ISO 527-2 specifies the test conditions for determining the tensile properties of moulding and extrusion plastics. It is part of the ISO 527 series on plastics testing and builds on the general testing principles outlined in ISO 527-1. This part focuses specifically on rigid and semi-rigid plastic materials and is used to evaluate their mechanical performance under tensile stress.
Why is ISO 527-2 important?
Tensile testing is a key step in understanding how plastic materials behave under load, particularly for quality control, product development and material comparison. ISO 527-2 ensures that these tests are carried out under consistent, internationally recognised conditions, making results more reliable and comparable. With clear guidelines on specimen types, preparation and test setups, it helps manufacturers, labs and researchers evaluate material performance with confidence.
Benefits
- Enables consistent and reliable tensile testing of plastics
- Supports material comparison, quality assurance and R&D
- Aligned with global testing standards for widespread applicability
- Accommodates a range of rigid and semi-rigid plastics, including fibre-reinforced types
- Integrates with related standards (ISO 527-1 and ISO 20753) for a full testing workflow
FAQ
Plastics manufacturers, materials testing labs, product developers and quality assurance teams working with moulding and extrusion plastics.
Rigid and semi-rigid thermoplastics and thermosets, including filled and reinforced materials (excluding textile fibres), as well as thermotropic liquid crystal polymers.
The 2025 revision includes updated specimen references aligned with ISO 20753, structural edits to improve clarity, and reorganised content such as moving Figure 1 and Table 1 to subclause 6.1. It also replaces previous specimen names (1A/1B) with A1 and A2, and updates references to ensure consistency with ISO 527-1:2019.
Specimens can be moulded or machined to size, but ISO 20753 multipurpose specimens are preferred for consistency and compatibility.
General information
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Status: PublishedPublication date: 2025-06Stage: International Standard published [60.60]
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Edition: 3Number of pages: 11
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Technical Committee :ISO/TC 61/SC 2ICS :83.080.01
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Life cycle
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Previously
WithdrawnISO 527-2:2012
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Now
