What is ISO 7876-5 - Vocabulary for common rail fuel injection system about?
ISO 7876-5 is the fifth part of the ISO 7876 multi-series regarding fuel injection equipment.
ISO 7876-5 establishes a vocabulary for common rail (CR) fuel injection systems for diesel (compression-ignition) engines and their components.
The terms defined in ISO 7876-5 are unique to common rail fuel injection systems, terms and definitions relating to other fuel injection systems are found in the other parts of the ISO 7876 series.
Who is ISO 7876-5 - Vocabulary for common rail fuel injection system for?
ISO 7876-5 on vocabulary for common rail fuel injection systems is useful for:
- Manufacturers of fuel injection equipment
- Suppliers of fuel injection equipment
- Research and development teams
- Quality control personnel
- Testing and inspection personnel
Why should you use ISO 7876-5 - Vocabulary for common rail fuel injection system?
The common rail fuel injection system has updated its functions or component performances to improve diesel engine performance and exhaust after treatment with respect to driveability, engine power, emission, fuel consumption, noise, vibration and so on. New terms are required to describe this updated functionality.
ISO 7876-5 introduces you to the new terms and definitions that describe the advancements in parts and components of common rail fuel injection systems. With ISO 7876-5 you can standardise the terminology for common rail fuel injection systems across its supply chain and eliminate the possibility of confusion.
What’s changed since the last update?
BS ISO 7876-5:2021 supersedes ISO 7876‑5:2004, which has been technically revised. The main changes compared to the previous edition are as follows:
- Additional terms, already in use worldwide, have been added to Clause 3

