Overview
EN ISO 1043-1:2011/A1:2016 is a CEN-endorsed amendment to ISO 1043-1 (published 2011) that updates the standardized symbols and abbreviated terms used to identify basic polymers and their special characteristics. Published in 2016, this amendment introduces a new symbol ST for syndiotactic and a corresponding abbreviated term PS‑ST (polystyrene, syndiotactic). The change prevents duplication of abbreviations for materials with similar names and ensures consistent material identification across Europe and internationally.
Key topics and requirements
- Standardizes abbreviated terms (Clause 5) and symbols (Clause 6) used in polymer identification.
- Amendment A1 specifically adds:
- Abbreviated term: PS‑ST - polystyrene, syndiotactic.
- Symbol: ST - meaning syndiotactic.
- Ensures that national standards bodies adopt the amendment without modification (CEN adoption rules).
- Maintains ISO/TC 61’s editorial and technical conventions for material designation and documentation.
- Requires consistent use of the updated symbols in technical documentation, labeling, and material specifications to avoid ambiguity.
Practical applications
- Clear, unambiguous material labeling on product datasheets, packaging and technical drawings.
- Accurate material declarations for procurement, quality control and regulatory compliance.
- Improved material traceability in manufacturing, testing laboratories and recycling streams.
- Consistent terminology for specification sheets, bills of materials, and CAD/PDM systems where polymer type and tacticity (e.g., syndiotactic) are relevant.
- Useful in research and development where polymer microstructure (syndiotactic vs. isotactic/atactic) affects properties and needs standard coding.
Who should use this standard
- Plastics manufacturers and compounders
- Product designers and engineers specifying polymer grades
- Quality assurance and regulatory teams
- Testing laboratories and material characterization services
- Recyclers and waste management organizations needing reliable material identification
- Standards bodies and procurement officers ensuring consistent documentation
Related standards
- ISO 1043 series (other parts covering symbols/abbreviations for additives, fillers and other plastic-related designations)
- ISO/TC 61 “Plastics” technical committee publications
Keywords: EN ISO 1043-1:2011/A1:2016, ISO 1043-1, plastics symbols, abbreviated terms, basic polymers, syndiotactic, ST symbol, PS‑ST, material identification, polymer labeling, CEN amendment.