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EN 17255: requirements for emission data acquisition and handling systems

APS AutomazioneEN 17255AMSDAHSCUSUMQAL2QAL3

EN 17255 (UNI EN 17255 in Italy) is an essential reference for every industrial plant that needs to manage emissions-to-air data reliably and in line with EN 14181. In this context, DAHS (Data Acquisition and Handling Systems) are the key tool for acquiring, managing and processing data from automated measuring systems (AMS) for continuous emission monitoring.

EN 17255: a framework for advanced environmental data management

EN 17255 is a multi-part standard that sets out the technical and functional requirements for DAHS and the criteria for their testing and certification. Its purpose is to ensure that environmental data are acquired, validated, processed and stored in a structured, secure way that complies with European standards.

It complements EN 14181, which defines the quality assurance procedures for emission monitoring systems: while EN 14181 ensures the quality of the measurement, EN 17255 ensures that the emission data used to check compliance with emission limit values are processed correctly, traceably and reproducibly.

The role of DAHS in industrial processes

DAHS compliant with EN 17255 allow industrial plants to:

  • automatically acquire data from the AMS in real time
  • standardise measured values (temperature, pressure, moisture and reference oxygen) and calculate averages over the required periods
  • manage and validate data according to regulatory criteria
  • ensure full traceability of data throughout their life cycle
  • store data and make them available for analysis, reporting and inspections
  • integrate environmental information into centralised management platforms

    • These functions make the DAHS a strategic element of modern, efficient environmental monitoring.

    Compliance with EN 14181

    EN 14181 requires emission data to undergo rigorous quality controls. In this context, the DAHS plays a key role in supporting:

  • correct recording of data from the AMS
  • application of the calibration function determined in QAL2
  • management of QAL3 procedures, for example through CUSUM control charts
  • classification of data (valid, invalid, under maintenance, etc.)
  • production of compliant reports for the competent authorities

    • A DAHS compliant with EN 17255 therefore ensures full consistency with the requirements of EN 14181.

    Benefits for industrial plants

    Adopting a compliant DAHS brings concrete, immediate benefits:

    Assured regulatory compliance

    It reduces the risk of non-compliance and simplifies the management of regulatory obligations.

    Continuous, reliable control

    It enables constant monitoring of emissions with real-time data.

    Operational efficiency

    It automates data acquisition and management, reducing manual work and the chance of errors.

    Transparency and traceability

    It ensures data are managed in a clear, verifiable way, ready for audits and inspections.

    Decision support

    It enables advanced analysis of historical data, helping to optimise production processes and improve environmental performance.

    Why choose a DAHS compliant with EN 17255

    Investing in a DAHS compliant with EN 17255 means adopting a reliable, scalable platform designed to meet the needs of modern industrial plants.

    Such a solution goes beyond simple data collection: it becomes a genuine strategic management tool that supports regulatory compliance, operational efficiency and continuous improvement.

    In an increasingly regulated, sustainability-driven world, a compliant DAHS is a fundamental choice for ensuring control, security and quality in the management of emissions to air.

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