Overview
ISO 28560-3:2024 - Information and documentation - RFID in libraries - Part 3: Fixed length encoding defines a standards-based data model and encoding rules for placing bibliographic and item data on RFID tags used by libraries. The standard addresses the needs of all library types (national, academic, public, corporate, special and school libraries) and specifies how a subset of data elements from ISO 28560-1 is encoded into a basic block, with additional elements placed in extension blocks. The document supports interoperability, migration guidance (Annex A), and practical implementation examples (Annex B).
Key technical topics and requirements
- Data elements: Defines which library data elements are mandatory/optional (in conjunction with ISO 28560-1) and how they are represented on tags.
- Basic block vs extension blocks: The basic block occupies the first 272 bits of the RFID tag (truncated to 256 bits for tags limited to 32 bytes). Other data elements are encoded in structured or unstructured extension blocks.
- RFID air interface & conformance: References requirements for air interface parameters and conformance testing (e.g., ISO/IEC 18000-3, ISO/IEC 18047-3).
- Tag performance: Addresses tag performance and testing considerations (ISO/IEC 18046-3).
- Data protocol and memory layout: Rules for writing/reading direction, memory area layout for different tag sizes, and layout specifics for tags >32 bytes and 32-byte tags.
- Encoding formats: String and integer encoding rules, CRC (cyclic redundancy check) calculation, filler/unused space handling, and end-of-tag markers.
- Operational rules: Guidance on writing the tag, reading optimization, profiling, and locking.
- Migration and profiling: Informative annexes provide migration guidance, reading optimization and regional profiling recommendations.
Practical applications and who uses this standard
- Library IT and systems integrators: Implement consistent tag encoding for integrated library systems (ILS), self-service kiosks and circulation workflows.
- RFID tag and equipment manufacturers: Ensure tag memory layout and air-interface compatibility to meet library use cases and interoperability.
- Consortia and shared-resource networks: Enable reliable resource sharing and item tracking between institutions by adopting a common encoding model.
- Library managers and planners: Plan migrations, procurement and tagging strategies that conform to an international standard for predictable behaviour across devices.
Related standards and references
- ISO 28560-1 - Data elements and general implementation guidelines (normative companion).
- ISO/IEC 10646 - Universal coded character set (UCS).
- ISO/IEC 18000-3, 18046-3, 18047-3 - RFID air interface parameters, tag performance and conformance test methods.
ISO 28560-3:2024 is a practical standard for libraries seeking interoperable, predictable fixed-length RFID encodings that support security, circulation, self-service and cross-library resource sharing.
