Technical Articles

What is BS EN 12871-2013?

BS EN 12871:2013 is a technical standard that provides guidelines for the measurement of gaseous pollutant emissions from stationary sources, such as industrial plants and power generation facilities. It aims to establish a consistent methodology for monitoring and reporting emissions, which helps ensure compliance with environmental regulations and supports efforts to reduce air pollution.

Understanding the Scope

The standard covers the measurement of various gaseous pollutants, including sulfur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO), and volatile organic compounds (VOCs). It defines the appropriate measurement methods, sampling techniques, and data evaluation procedures to be used. This allows organizations to accurately assess the impact of their activities on air quality and take necessary measures to control emissions.

The scope of BS EN 12871:2013 also includes guidance on the installation, operation, and maintenance of continuous emission monitoring systems (CEMS) for analyzing pollutant concentrations in real-time. CEMS provide a reliable means of tracking emissions and can help identify any potential issues or abnormal fluctuations that may require corrective actions.

Benefits and Importance

BS EN 12871:2013 plays a crucial role in environmental protection and sustainable development. By providing a standardized approach to measuring and monitoring emissions, it enables better understanding and management of air pollution risks. The benefits of implementing the standard include:

1. Compliance: The standard ensures that organizations comply with legal requirements related to emissions monitoring and reporting. Meeting these obligations is essential for avoiding penalties and maintaining a good reputation.

2. Accuracy and Comparability: BS EN 12871:2013 offers guidelines for accurate and consistent measurements, enabling meaningful comparisons between different sources and locations. This allows for reliable assessment of air quality and identification of areas that need environmental interventions.

3. Accountability: By monitoring emissions using standardized protocols, organizations can provide transparent and reliable data to regulators, stakeholders, and the public. This fosters trust and accountability in the management of industrial activities.


BS EN 12871:2013 is an essential tool for measuring, monitoring, and managing gaseous pollutant emissions. It provides a uniform framework for accurate assessment and reporting, ultimately supporting efforts to protect the environment and improve air quality. Implementing the standard helps organizations take proactive steps towards sustainability and contributes to the overall well-being of communities and ecosystems.



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