Overview
EN ISO 11403-3:2021 (ISO 11403-3:2021) defines methods for acquiring and presenting comparable multipoint data that describe how plastics respond to environmental influences. The standard covers four classes of exposure - prolonged heat, liquid chemicals, environmental stress cracking under constant tensile stress, and artificial weathering - and specifies test sequencing from least to most severe so that more aggressive testing is only carried out when justified. Its aim is to produce comparable, multipoint datasets to support material selection, performance comparison and data exchange.
Key topics and requirements
- Scope and purpose: Procedures to obtain multipoint property data that reflect time-, temperature- and environment-dependent behavior of plastics.
- Test types: Prolonged exposure to heat; immersion in liquid chemicals; environmental stress cracking under constant tensile stress; and artificial weathering.
- Test sequencing: Tests are listed in order of increasing environmental severity to enable informed decisions about further testing.
- Specimen preparation and conditioning: Requirements for preparing standard specimens and conditioning prior to exposure (references to relevant specimen-moulding standards).
- Indicative properties and data presentation: Guidance on which properties to measure and on presenting multipoint data for straightforward comparison.
- Reference methods: Cross-references to related ISO test methods used within the standard (e.g., ISO 175 for immersion, ISO 2578 for heat exposure, ISO 22088 for environmental stress cracking, ISO 4892-2 for artificial weathering).
- Precision and annexes: Clauses on precision, and annexes providing chemical lists and test information relevant to selected exposures.
Applications
EN ISO 11403-3:2021 is practical for:
- Producing comparable datasets for material selection and supplier comparisons.
- Evaluating plastics for outdoor durability, chemical resistance (e.g., piping, tanks), and susceptibility to environmental stress cracking.
- Quality control and batch comparison in laboratories and manufacturing.
- Supplying structured property data to feed material databases or digital product development systems.
Who uses this standard
- Polymer engineers and materials scientists
- Test laboratories and certification bodies
- Product designers and R&D teams (automotive, building, consumer goods, medical devices)
- Procurement and specification authors seeking comparable technical data
Related standards
EN ISO 11403-3:2021 helps ensure consistent, comparable environmental performance data for plastics - a key asset for robust material selection and lifecycle planning.
