Overview
SIST EN ISO 16757-5:2026 defines standardized data structures and an exchange format for electronic product catalogues used in building services. Developed by SIST, this standard ensures that manufacturers, software providers, and designers can exchange comprehensive product catalogue data in a consistent and interoperable manner.
Focusing on the product catalogue exchange format, this part of ISO 16757 specifies how product information related to building services (e.g., HVAC, electricity, plumbing) is organized and transferred using digital formats. The central goal is to facilitate the provision, integration, and use of product data, including geometry, properties, and classification, via established frameworks such as IFC (Industry Foundation Classes, ISO 16739-1) and EN 17549-2, supported by standardized data dictionaries.
Key Topics
- Catalogue Data Exchange: Specifies processes for the provision and interoperable exchange of product catalogues from manufacturers to designers.
- IFC-Based Representation: Defines how products, product classes, ports, in/outlets, components, and accessories are represented using IFC for BIM (Building Information Modelling) environments.
- Use of Data Dictionaries: Structures and content setup leverage definitions from a central data dictionary, ensuring uniform class definitions, property lists, and constraints.
- Geometrical Representation: Sets rules for representing product geometry, including symbolic and shape geometry, to support planning, CAD, and calculation systems.
- Parametric Geometry & Variants: Outlines the handling of parametric geometry and generation of IFC geometries to manage configurable product variants efficiently.
- Product Properties & Constraints: Details how product properties and property constraints are mapped in IFC, supporting variant selection and dynamic property calculation.
- Article Number Calculation: Provides principles for calculating part numbers based on unique sets of property values.
Applications
SIST EN ISO 16757-5:2026 is highly relevant for:
- Software Providers: Developers of BIM, planning, CAD, and calculation software benefit from a standardized format for importing and exporting product catalogues, enabling seamless integration and model consistency.
- Manufacturers and Catalogue Providers: Ensures product data is structured and communicated in a way that meets the interoperability requirements of various platforms, increasing product visibility and usability in digital projects.
- Building Services Designers: Facilitates quick access to detailed, structured product information, supporting efficient selection, configuration, and integration of products into building models.
- Integrated Project Delivery Teams: Enhances cooperation by providing a unified data model for product attributes, geometry, and performance, reducing errors and rework.
By providing a clear framework for electronic product catalogue data exchange in building services, this standard reduces ambiguity and duplication, improves data quality, and streamlines design, selection, and procurement processes in the construction sector.
Related Standards
- ISO 16739-1 (IFC): The foundation for BIM data schema, enabling software interoperability for building and infrastructure projects.
- EN 17549-2: European standard on the exchange of product catalogue properties and constraints.
- ISO 16757-1: Concepts, architecture, and model for electronic product catalogues in building services.
- ISO 16757-2: Specification for the geometric representation of building services products.
- ISO 16757-4: Guidance on the structure of data dictionaries for product catalogues.
- ISO 12006-3: Framework for data dictionaries in construction and built environment.
- ISO 23386: Provides methodology for describing, authoring, and maintaining properties in interconnected data dictionaries.
Summary
SIST EN ISO 16757-5:2026 advances digitalization and interoperability in the built environment. By defining a robust format for product catalogue data exchange, it supports efficient collaboration across stakeholders and ensures that critical product information is readily available to support BIM and other digital construction workflows. Adopting this standard enables software providers, manufacturers, and designers to improve process efficiency, ensure consistent product information, and strengthen data-driven decision-making in building services projects.