How should Na–Fe–Mn oxide particle properties be evaluated?
Check composition and phase, exposure-related changes, size distribution and morphology. Track the entire preparation history so atmospheric effects can be distinguished from mechanical effects.
- D10The fine end
- 10% below this diameter
- D50The median
- 50% below this diameter
- D90The coarse end
- 90% below this diameter
Percentiles depend on the measurement and weighting basis. Report the method, dispersion conditions and complete curve. These labels are definitions, not target sizes or equipment guarantees.