Quality control and documentation for B2B supply
A B2B pellet purchase is not only about the price per ton. Buyers evaluate calorific value, moisture, ash content, pellet durability, boiler compatibility, packaging, delivery terms and document availability.
Key quality parameters
How many MJ/kg of energy each kg burned releases.
Affects combustion efficiency and energy losses.
Determines ash removal and maintenance intervals.
Pellet density and mechanical behaviour indicator.
How well pellets keep their shape during transport and feeding.
Whether the batch uses binders or additives.
Which batch / supplier the specific load comes from.
Bulk, big bags, sacks or pallets — affects handling.
Technical parameters comparison
| Parameter | Sunflower husk | Wood | Status / note |
|---|---|---|---|
| Diameter | 6 / 8 mm | 6 / 8 mm | Standard B2B fractions |
| Calorific value | 16–18 MJ/kg | 16–19 MJ/kg | Typical public value |
| Moisture | ≤ 10% | ≤ 10% | Storage-controlled |
| Ash content | 2–4% | ≤ 0.7% | Husk: higher ash · wood: lower ash |
| Bulk density | 600–700 kg/m³ | 600–750 kg/m³ | Typical public value |
| Mechanical durability | ≥ 95% | ≥ 97% | Typical public value |
| Additives | No additives unless stated | No additives unless stated | Stated in documents |
| Packaging | Bulk / big bags / sacks | Bulk / big bags / sacks / pallets | On request |
| Documents | Technical specification, COA, origin documents | Technical specification, COA, origin documents | On request |
- Diameter
- Sunflower husk
- 6 / 8 mm
- Wood
- 6 / 8 mm
- Status / note
- Standard B2B fractions
- Calorific value
- Sunflower husk
- 16–18 MJ/kg
- Wood
- 16–19 MJ/kg
- Status / note
- Typical public value
- Moisture
- Sunflower husk
- ≤ 10%
- Wood
- ≤ 10%
- Status / note
- Storage-controlled
- Ash content
- Sunflower husk
- 2–4%
- Wood
- ≤ 0.7%
- Status / note
- Husk: higher ash · wood: lower ash
- Bulk density
- Sunflower husk
- 600–700 kg/m³
- Wood
- 600–750 kg/m³
- Status / note
- Typical public value
- Mechanical durability
- Sunflower husk
- ≥ 95%
- Wood
- ≥ 97%
- Status / note
- Typical public value
- Additives
- Sunflower husk
- No additives unless stated
- Wood
- No additives unless stated
- Status / note
- Stated in documents
- Packaging
- Sunflower husk
- Bulk / big bags / sacks
- Wood
- Bulk / big bags / sacks / pallets
- Status / note
- On request
- Documents
- Sunflower husk
- Technical specification, COA, origin documents
- Wood
- Technical specification, COA, origin documents
- Status / note
- On request
Documents we prepare
Technical specification
Pellet parameters aligned for the specific batch or offer.
Batch analysis / COA
Specific batch analysis results — calorific value, moisture, ash content, etc.
Origin documents
Product origin documentation on request.
Packaging information
Packaging form, marking, palletisation, weights.
Transport documents
CMR, waybills and other transport documentation.
Invoice / waybill
Commercial documents matching the delivery terms.
Customs documents
Where applicable for the specific delivery situation.
Certificates
Where available for the specific batch — stated in the offer.
Our approach to certification
Need a technical specification?
Send product, volume and intended application details. Rix Energy will clarify the specification and batch documents available for the specific offer.