Figure 3From: Quantitative characterization of agglomerates and aggregates of pyrogenic and precipitated amorphous silica nanomaterials by transmission electron microscopyNumber-based distributions of the mean diameter (A), sphericity (B) and shape factor (C) of agglomerates and aggregates of SAS NM. The frequency of the agglomerates and aggregates of SAS NM: NM-200 (Black), NM-201 (Red), NM-202 (Green) and NM-203 (Orange) are represented as a function of mean diameter, sphericity and shape factor.Back to article page