Powder Characterisation Tracker

Enter your powder batch measurements — particle size distribution, Hall flow, apparent and tap density, moisture, and oxygen content. Each metric is checked against process-specific thresholds and scored pass / marginal / fail, with an overall suitability percentage and a qualified / conditional / rejected verdict.

Process

Reactive metal (Ti, Al, Mg) — stricter O₂ limit

Particle size distribution

From laser diffraction or sieve analysis (ASTM B822)

D10D₁₀

µm

D50 (median)D₅₀ideal: 15–45 µm

µm

D90D₉₀

µm

Span = (D90–D10)/D50 = 1.33

Flow & density

ASTM B213 (Hall flow), ASTM B212 (apparent), ASTM B527 (tap)

Hall flow rateideal < 20

s/50g

Apparent densityideal > 4 g/cm³

g/cm³

Tap density

g/cm³

Hausner ratio = tap/apparent = 1.167ideal < 1.25

Chemistry

Moisture contentideal < 0.1%

Oxygen contentideal < 2000 ppm

ppm

Results

Overall suitability score

100/ 100Qualified

Qualified ≥ 75%Conditional 50–74%Rejected < 50%

Metric	Value	Threshold	Status
D50 Particle SizeD10: 15 µm D90: 55 µm	30.0µm	15–45 µm	Pass
Particle Size Span(D90−D10)/D50	1.333	< 1.5	Pass
Hall Flow Rate	18.000s/50g	< 20 s/50g	Pass
Apparent Density	4.200g/cm³	> 4 g/cm³	Pass
Hausner RatioTap / Apparent — fluidity proxy	1.167	< 1.25	Pass
Moisture Content	0.05%	< 0.1%	Pass
Oxygen Content	800ppm	< 2000 ppm	Pass