A lot suited for BBQ
Input
50 mm: 4%, 30 mm: 38%, 20 mm: 36%, 10 mm: 17%, pan: 5%, fines ratio: 5%
Output
Ship ok / Recommended use: BBQ / Low fines and a high main fraction
Menedżer wielkości cząstek węgla drzewnego i udziału drobnych frakcji
Enter sieve results and fines ratio to sort charcoal lots by shipping readiness and intended use.
The page is designed so BBQ, commercial, and industrial candidates can be compared on the same screen.
Review opening size, retained %, and cumulative passing together
Show D10 / D50 / D90 and span
The same decision logic in English and other languages
Jak używać
- Enter lot information, sample mass, spec name, and the sieve stack used.
- Enter the retained amount for each sieve and the fines ratio if you have it.
- Choose a use profile and check shipping readiness and the recommended use.
- Save as CSV or JSON if needed, and open it in another language.
Sample
A lot with conditional commercial fit
Input
50 mm: 8%, 30 mm: 28%, 20 mm: 30%, 10 mm: 20%, pan: 14%
Output
Review / Recommended use: Commercial / Fines ratio is slightly high
A lot to rework before industrial use
Input
Fines ratio: 18% / no sieve table entered
Output
Hold / Recommended use: Industrial candidate / Reference judgment because no sieve table was entered
Słowniczek
Rozkład wielkości cząstek
The distribution of retained and passing percentages by sieve.
Udział drobnych frakcji
The share of particles treated as fines.
Kumulacyjny przelot
The share that passed through the sieve.
D50
A median-size proxy for the particle distribution.
Rozstęp
A spread index calculated as (D90 - D10) / D50.
Formulas
Retained % = retained mass / total mass × 100Cumulative passing % = 100 - cumulative retained %Fines ratio = fines mass / total mass × 100Span = (D90 - D10) / D50
FAQ
Can fines ratio be calculated from the sieve table?
Yes. It can be calculated from the pan row or from the total below the configured cutoff.
Are the BBQ, commercial, and industrial thresholds fixed?
No. The defaults are reference bands and can be tuned for each market.
Can I use mesh labels only?
Mesh can be used as a label, but the calculation uses opening size values.
Can I see the same result in other languages?
Yes. The state keys and decision logic are shared; only the display text is translated.
Uwagi
- These thresholds are starting values. Tune them for each market.
- Check the opening size, not just the mesh label.
- Compare only when the mass basis is aligned: as received or dry.
- This tool supports shipping decisions but does not replace certification or contract specs.