Overview
EN ISO 23875:2022 (identical to ISO 23875:2021) specifies performance and design requirements for air quality control systems installed in mining operator enclosures. Published by CEN, the standard takes a life‑cycle approach covering design, performance testing, monitoring, operation and maintenance. Its primary focus is controlling pressurization, respirable particulate and carbon dioxide (CO2) concentrations inside enclosures. Note: gases and vapours hazardous outside the operator enclosure are excluded.
Key Topics and Requirements
- Performance requirements: Parameters and acceptance criteria for enclosure pressurization, particulate reduction and CO2 dilution/monitoring.
- Engineering design:
- Operator enclosure design principles to support sustained air quality.
- Air quality control system components including supply and recirculation paths.
- Filters and filter housings - selection, installation and integrity considerations.
- Monitoring devices:
- Requirements for sensor performance and placement.
- CO2 operator notification systems specified separately for retrofit installations and for machine manufacturers.
- Additional monitoring capabilities and operator alerts.
- Performance testing:
- Test set‑up, test equipment and standardized test methods to verify pressurization and particulate/CO2 performance.
- Required contents of a test report for conformity assessment.
- Operation and maintenance:
- Instructions and schedules to sustain performance over the enclosure life cycle.
- Recommendations for operational integration and ongoing testing.
- Normative references: incorporates related standards such as ISO 29463 series (high‑efficiency filter testing), ISO 18158 (workplace air terminology) and ISO/IEC 17000 (conformity assessment vocabulary).
Practical Applications and Users
Who benefits from EN ISO 23875:2022:
- Mining equipment manufacturers designing cab enclosures and integrated air quality systems.
- Mine operators and site safety teams specifying or procuring safe operator cabins.
- Maintenance and service personnel implementing filter replacement, sensor calibration and operational checks.
- Certification bodies and compliance officers conducting performance tests and reviewing test reports.
Practical use cases include new machine design, retrofitting existing cabs with CO2 notification systems, acceptance testing after installation, and establishing maintenance regimes to ensure compliant air quality.
Related Standards
- ISO 29463‑1/2/3/4/5 - High‑efficiency filters and testing methods
- ISO 18158 - Workplace air terminology
- ISO/IEC 17000 and 17050 series - Conformity assessment and supplier declarations
EN ISO 23875:2022 is a technical foundation for improving operator health and safety through standardized design, testing and lifecycle management of air quality control systems in mining operator enclosures.