EN 15267 Air Quality - Evaluation of Air Quality Monitoring Equipment
The European standard “EN 15267 Air quality - Evaluation of air quality monitoring equipment” consists of the following subsections published under the same title:

- EN 15267-1 Part 1: General principles of certification describes a procedure for the certification of air quality monitoring equipment for ambient air quality and emissions from stationary sources, for which performance criteria and test procedures are available in European standards. This standard details and complements the requirements of EN ISO/IEC 17065 for certifying bodies that evaluate air quality monitoring equipment. This standard specifies the requirements for testing laboratories and the monitoring of the manufacturer's quality management system and production process as part of the certification process. This standard is only valid in conjunction with EN ISO/IEC 17065.
The certification body must liaise with the relevant national competent authority as appropriate. The certification body must
- Issues certificates with an appropriate scope of certification
- It issues certificates in at least the three main CEN languages, namely English, French or German.
The scope of certification includes, for example, the measured components, certification intervals, process applications and usage limitations for automatic measuring systems.
Air quality monitoring equipment (AQME) refers to an automatic measurement system or data collection and processing system. Automatic measurement system (AMS) refers to all measuring instruments and additional devices used to obtain measurement results.
The certification body must have appropriate procedures for certification of AQME in accordance with the requirements of this standard.
- The standard "EN 15267-2 Part 2: Initial assessment of the manufacturer's quality management system and post-certification surveillance for the production process" describes the requirements for a manufacturer's quality management system. It also specifies requirements for the initial assessment of the manufacturer's production control and the ongoing surveillance of the impact of subsequent changes on the performance of certified air quality monitoring equipment (AQME). This standard also serves as a reference document for auditing the manufacturer's quality method system. This standard is only valid in conjunction with EN ISO 9001.
- The standard "EN 15267-3 Part 3: Performance criteria and test procedures for stationary automatic measuring systems for continuous monitoring of emissions from stationary sources" describes the performance criteria and test procedures for the performance testing of stationary automatic measuring systems that continuously measure gases and particulate matter in flue gases and flue gases from stationary sources. This standard supports the requirements of certain European Union directives. This standard provides detailed procedures covering the requirements of EN 14181 and, where necessary, input data.
- The standard "EN 15267-4 Part 4: Performance criteria and test procedures for portable automatic measuring systems for periodic measurements of emissions from stationary sources" describes the general performance criteria and test procedures for the performance testing of portable automatic measuring systems used for periodic measurements of emissions from stationary sources. This standard applies to the performance testing of automatic measuring systems based on measurement techniques specified by the reference method or an alternative method. The performance testing is based on the general performance criteria and test procedures specified herein and on the specific requirements specified for the standard reference method or an alternative method. This includes testing the applicability and correct application of quality assurance and quality control procedures specified for the standard reference method or an alternative method. This standard supports the requirements of certain European Union legal regulations.
In short, EN 15267 defines the performance and certification requirements for automated measurement systems used to monitor air emissions from stationary sources. These standards play a vital role in ensuring the accurate measurement of industrial emissions, supporting both environmental protection and regulatory compliance.
The EN 15267 standard applies to automatic measurement systems used for continuous emission monitoring of pollutants from stationary sources such as power plants, incineration plants and industrial plants and consists of multiple parts focusing on different aspects.
EN 15267 standards ensure that emissions monitoring equipment used in industrial facilities meets stringent performance, accuracy, and reliability criteria. This is important for:
- Legal compliance: Facilities are often legally required to monitor certain emissions such as nitrogen oxides, sulfur dioxide, carbon monoxide, particulate matter, and similar.
- Environmental protection: Accurate data helps monitor pollution and enforce air quality standards.
- Data integrity: Certification according to EN 15267 standard assures stakeholders that emissions data are consistent, valid and reliable.
The main features of this standard are:
- Type approval: Manufacturers must submit the automatic measurement system to independent testing laboratories for performance evaluation to ensure that the system meets minimum standards under different conditions.
- Continuous quality assurance: Operators must regularly calibrate and verify the automatic measurement system against reference methods to maintain performance over time.
- Modular evaluation: The EN 15267 standard allows evaluation of system components (e.g. analyzer modules, sampling units) to facilitate flexible system design.
- Environmental and operational testing: Systems are tested under various environmental conditions (humidity, temperature, vibration) to ensure they operate correctly in real-world environments.
EN 15267 certified systems are used in the following areas:
- Power generation facilities (coal, gas, biomass)
- Waste incineration plants
- Cement and lime production
- Chemical and petrochemical industries
- All facilities subject to the European Union industrial emissions directive
As a result, EN 15267 is the foundational standard for air pollution monitoring in Europe. It ensures that automatic emission monitoring systems are independently tested and proven to be reliable, accurate, and suitable for their intended applications. By supporting these standards, industries contribute to environmental protection and comply with stringent European Union regulations.
Our organization, which has been supporting businesses across all sectors for years through a wide range of testing, measurement, analysis, and evaluation activities, has a strong team of employees who closely follow global developments in science and technology and are constantly improving themselves. In this context, we also provide testing services in accordance with the EN 15267 Air quality - Evaluation of air quality monitoring equipment standard.