What is BS EN ISO 11662-2:2010?

BS EN ISO 11662-2:2010 is an international standard that defines the technical specifications for the measurement and manipulation of airborne particles in ambient air. This standard provides guidance on sampling techniques, particle size distribution analysis, and particle counting methods.

The purpose of BS EN ISO 11662-2:2010 is to ensure accurate and consistent measurement of airborne particles, which are commonly referred to as particulate matter or PM. These particles can have significant impacts on human health and the environment, so it is crucial to have reliable methods to assess their levels.

The Importance of Airborne Particle Measurement

Airborne particles can originate from various sources such as industrial emissions, traffic exhaust, biomass burning, and natural processes like dust storms. These particles come in different sizes, ranging from nanometers to micrometers, and can contain harmful substances such as heavy metals, organic compounds, and biological agents.

When inhaled, these particles can penetrate deep into the respiratory system and cause adverse health effects, including respiratory diseases, cardiovascular problems, and even premature death. Additionally, some particles can contribute to climate change, affect air quality, and impair visibility.

Principles and Techniques for Airborne Particle Measurement

Before diving into the principles and techniques outlined in BS EN ISO 11662-2:2010, it's important to understand the definition of particle size distribution (PSD). PSD refers to the number or mass concentration of particles in different size ranges within a given sample.

This standard provides detailed instructions on how to collect samples using different types of samplers, such as gravimetric samplers, cascade impactors, and optical particle counters. It also presents various methods for analyzing particle size distribution, including microscopy, sieving, centrifugation, and laser diffraction.

Furthermore, BS EN ISO 11662-2:2010 provides recommendations on calibration procedures, data interpretation, and reporting requirements to ensure accurate and comparable results across different monitoring stations or laboratories.

Conclusion

BS EN ISO 11662-2:2010 plays a vital role in setting the standards for airborne particle measurement. By providing clear guidelines on sampling techniques, particle size distribution analysis, and counting methods, this standard helps researchers, environmentalists, and regulatory bodies assess the levels of particulate matter accurately.

With the knowledge gained from implementing this standard, effective strategies can be developed to mitigate the adverse impacts of airborne particles on human health and the environment, leading to better air quality and improved overall well-being.