Overview
ISO/PAS 25091:2026 sets out angular sweep test methods for evaluating the read range performance of radio frequency identification (RFID) enabled tyres. Developed by the International Organization for Standardization (ISO), this specification supports the efficient and reliable assessment of RFID performance in tyres tagged as described in ISO 20909 and ISO 20911. It is applicable to passenger car, light commercial, and truck tyres, and operates in the ultra high frequency (UHF) RFID band from 860 to 930 MHz. The document introduces measurement approaches that help standardize performance indicators, fostering a common language and methodology across the automotive and RFID industries.
Key Topics
- Angular Sweep Methods (ASM): Defined methodologies for assessing RFID read range at different angular positions around the tyre, ensuring comprehensive performance evaluation.
- Angular Sweep Performance (ASP) Indicator: A standardized performance indicator that quantifies the minimum effective isotropic radiated power (EIRPMin) required for reliable tag activation. This enables comparison across tyre models and test setups.
- Applicability: Focused on unmounted/mounted tyres, including those mounted on vehicles, for classes defined in the standard. The methods are not validated beyond these tyre categories.
- Testing Environment: Use of semi-anechoic or anechoic chambers is recommended to reduce interference and ensure repeatable laboratory results.
- Read Point Configuration: Emphasizes correct alignment and setup, including measuring distance, tag axis alignment, and proper marking of tag location on tyres.
Applications
The practical application of ISO/PAS 25091 addresses several key industry needs:
- OEMs and Tyre Manufacturers: Standardized methods to specify and validate RFID read range requirements for tyre models in development and production, improving consistency and interchangeability.
- RFID Solution Providers: Offers clear, repeatable metrics for system design, component selection, and troubleshooting, leading to more robust RFID integration for automotive logistics and maintenance.
- Testing Laboratories: Provides structured procedures and reporting guidelines for certifying RFID performance in line with regulatory and customer expectations.
- Fleet Operators and Read Point Owners: Ensures reliable tracking and identification across the tyre lifecycle, from warehousing and distribution to vehicle operation and end-of-life handling.
- Regulatory Compliance: Facilitates adherence to regional radio frequency regulations by defining test setups that can accommodate local legal requirements.
Related Standards
For full interoperability and conformance, ISO/PAS 25091:2026 relates closely to the following international standards:
- ISO 20909: Tyre RFID - Encoding and tagging requirements.
- ISO 20911: Tyre RFID - General characteristics and methods for tyres with integrated RFID tags.
- ISO 20912: Tyre RFID - Conformance test methods.
- ISO/IEC 18000-63: Information technology - RFID air interface communications; used for interpreting successful tag reads and error conditions.
- ISO 4000-1/ISO 4209-1: Specify tyre classification for passenger cars, light commercial vehicles, and trucks, providing critical context for test applicability.
Practical Value
Adoption of ISO/PAS 25091 supports:
- Greater data reliability and transparency for all stakeholders in tyre supply chains using RFID.
- Simplified communication and expectation management between manufacturers, system integrators, and end users.
- Improved global standardization of RFID tyre testing, paving the way for scalable smart mobility, inventory tracing, and vehicle lifecycle management solutions.
By following the test methods outlined in this ISO standard, organizations gain a validated approach for evaluating the RFID read range of tyres, maximizing traceability and performance in real-world automotive applications.