How can reliable results be achieved in gravimetric particulate matter measurements? Although the measurement principle appears straightforward – determining the mass of a filter before and after sample collection – in practice, measurement quality is influenced by numerous factors. The stability of ambient conditions, filter properties, electrostatic charges, and the metrological performance of the balance all play a crucial role in the accuracy and reliability of the final result.

In our new guide, ‘Gravimetric Methods in Air Quality Control,’ we discuss:

• The principles of gravimetric determination of PM₂.₅ and PM₁₀ mass concentration
• The requirements of EN 12341:2024 and EN 13284
• Sources of measurement uncertainty
• The influence of filter conditioning conditions on weighing results
• The capabilities of modern manual and automated systems for filter mass determination.

The publication also demonstrates how advances in gravimetric weighing technology – from high-performance laboratory balances to robotic weighing systems – translate into improved measurement accuracy, enhanced repeatability, and greater laboratory efficiency. It serves as a practical guide for professionals involved in air quality control, emissions analysis, and environmental research.

We also encourage you to find out more about the filter weighing devices discussed in this publication:

• AK-6.5Y.F Automatic Balance for Filters
• UMA 2.5Y.F Automatic Weighing System
• RB 2.5Y.F Robotic Weighing System
• RMC 2.5Y.FC Robotic Weighing System
• RW 5Y.F153 Robotic Weighing System.

Read the guide >>