Ash in biomass fuel: what boiler buyers should lock
| Parameter | Typical specification |
|---|---|
| PKS — ash | Max 5% by weight |
| Wood chip — ash | Max 3% by weight |
Figures from Admine product specs used in supply talks — not a lab certificate for every lot.
Ash consumes payload without adding heat and increases slag and ash-handling work. Put an ash ceiling in acceptance terms where the plant needs it.
Admine briefs PKS ash max 5% and wood chip ash max 3% by weight. Soil, stones, or metal make problems worse than the ash number alone suggests.
Spot-check early loads for foreign material, not only moisture.
If your plant needs a tighter ash cap, write it into the RFQ before comparing Thai suppliers.
Talk volume and moisture