Intro to Particle Size Statistics I: Mean vs. Percentile – Understanding Key Differences 

About This Webinar

Understanding particle size data is essential for making informed decisions in materials characterization, quality control, and process optimization. For example, while the “mean particle size” is widely referenced, it can be misleading when used alone—especially for samples with broad or skewed size distributions. To address this, percentile values such as D10, D50 (median), and D90 provide a more complete picture by describing how particles are distributed across the sample. However, even when two samples share the same median value, the width of their distributions may differ significantly. Therefore, a solid understanding of these parameters is essential. In this introductory webinar, we will clarify the fundamental differences between mean‑based and percentile‑based approaches to particle size analysis. Participants will learn how each metric is calculated, what information it provides, and how relying on a single parameter can lead to misinterpretation—supported by several practical examples. This session is ideal for users of particle size analyzers, QA/QC professionals, researchers, and anyone seeking a clearer understanding of particle size statistics before moving on to more advanced topics.