Products

Technical specifications of wood chip products

Code SM1 SM1W SM2 SM3D SM3
Moisture content (min. – max.), % as received 20 % – 45 % 35 % – 55 % 35 % – 55 % 35 % – 55 % 35 % – 60 %
Ash content, % of dry basis up to 2 % up to 2 % up to 3 % up to 5 % up to 5 %
Main fraction, mm (min quantity, %)7 3,15 ≤ P ≤ 63
(min. 80 %)		 3,15 ≤ P ≤ 63
(min. 80 %)		 3,15 ≤ P ≤ 63 (min. 70 %) 3,15 ≤ P ≤ 63
(min. 60 %)		 3,15 ≤ P ≤ 63 (min. 60 %)
Allowable quantity of the small particles fraction (<3.15 mm), % up to 2 % up to 5 % up to 10 % up to 20 % up to 25 %
Chlorine content (% of dry matter)4 <0,02 % <0,02 % <0,02 % <0,02 % <0,03 %
Raw material Stemwood  Stemwood and residues of the wood industry Whole trees (without roots) Short-rotation coppice and Stored logging residues Fresh logging residues
Allowable admixtures – – Dry leaves, dry needles Dry leaves, dry needles Leaves, needles (both dry and not dry)

Detailed specifications: Conditions of Trade in Biomass Products. 

Technical specifications of wood pellet products

Code MG1 MG2 MG3 IP2
Type of biomass wood pellets wood pellets wood pellets Industrial pellets
Diameter mm 6+-1 or 8+-1 6+-1 or 8+-1 6+-1 or 8+-1 6+-1 or 8+-1 or 10+-1
Length mm 3,15 <= L <= 40* 3,15 <= L <= 40* 3,15 <= L <= 40* 3,15 <= L <= 40*
Moisture % as received <= 10 <= 10 <= 10 <= 10
Ash % dry basis <= 0,7 <= 1,2 <=2 <= 1,5
Mechanical durability % as received >= 98,0 >= 97,5 >= 97,5 97,5 >= DU >= 99,0
Fines in biomass (<3,15 mm) % as received < 1,0 < 1,0 < 1,0 <5,0
Nitrogen % dry basis <= 0,3 <= 0,5 <= 1,0 <= 0,3
Sulfur % dry basis <= 0,04 <= 0,05 <= 0,05 <= 0,05
Chlorine % dry basis <= 0,02 <= 0,02 <= 0,03 <= 0,05
Ash Deformation Temperature °C >= 1200 >= 1100 >= 1100 >= 1100

* – a maximum of 1% of the pellets may be longer than 40mm, no pellets longer than 45mm are allowed

All wood pellet products must also meet the following requirements:

  • The amount of additives in production shall be limited to 1,8 w-%, the amount of post-production additives (e.g. coating oils) shall be limited to 0,2 w-% of the pellets.
  • Bulk density (BD) (kg/m3): 600 <= BD <= 750;
  • Net Calorific Value: >= 4,6 kWh/kg;
  • Limit for the temperature of pellets at the loading point for end-user deliveries: 40 °C;
  • Arsenic, mg/kg dry basis: <= 1,0;
  • Cadmium, mg/kg dry basis: <= 0,5;
  • Chromium, mg/kg dry basis: <= 10,0;
  • Copper, mg/kg dry basis: <= 10,0;
  • Lead, mg/kg dry basis: <= 10,0;
  • Mercury, mg/kg dry basis: <= 0,1;
  • Nickel, mg/kg dry basis: <= 10,0;
  • Zinc, mg/kg dry basis: <= 100,0.

Technical specifications of peat product

Code KD
Type of fuel peat Prepackaged milled peat
Fraction size mm 0 — 63
Moisture % as received <= 50
Ash % as received <= 8
Chlorine % as received <= 0,03
Sulfur % as received <= 0,3

Additional Information: Rules of Trade in Fuel Peat.

Technical specifications of the product of recycled wood

Biomass type Code Moisture, % of used weight Ash content, % of dry matter Fraction size Possible waste categories according to the European Waste Catalogue (2000/532/EC) Typical categories of raw materials
Min Max Max Allowable quantity of the small particles fraction (<3.15 mm), % Min. Main fraction, mm, min quantity, % Maximum allowable sum of particle length, width and height, mm
Recycled wood (chipped) RW1 20 40 4 Up to 20% of weight 3,15 ≤ P ≤ 63
(min 80 % of weight)		 <150 02 01 03 plant-tissue waste
02 01 07 wastes from forestry
03 01 01 waste bark and cork
03 01 05 sawdust, shavings, cuttings, wood, particle board and veneer other than those mentioned in 03 01 04
03 03 01 waste bark and wood
15 01 03 wooden packaging
17 02 01 wood
19 12 07 wood other than that mentioned in 19 12 06
20 01 38 wood other than that mentioned in 20 01 37		 A and B
Recycled wood (chipped) RW2 20 40 4 Up to 20% of weight 3,15 ≤ P ≤ 63
(min 80 % of weight)		 <150 02 01 03 plant-tissue waste
02 01 07 wastes from forestry
03 01 01 waste bark and cork
03 01 05 sawdust, shavings, cuttings, wood, particle board and veneer other than those mentioned in 03 01 04
03 03 01 waste bark and wood
15 01 03 wooden packaging
17 02 01 wood
19 12 07 wood other than that mentioned in 19 12 06
20 01 38 wood other than that mentioned in 20 01 37		 A, B and C

Additional Information: Conditions of Trade in Biomass Products.

Technical specifications of the lignin and wood biomass mixture

Biomass type Code Moisture, % of used weight Ash content, % of dry matter Fraction size Nitrogen content (% of
dry
matter)		 Chlorine content (% of
dry
matter)		 Sulfur content (% of
dry
matter)		  Allowed impurities
Min Max Max Main fraction, mm (min quantity, %) Grand fraction, mm (max quantity, %) Max allowed length, mm
Lignin and biofuel
mixture		 LBM 35 60 8 0,03 ≤ P ≤ 3,15
(min. 70 % of weight)		 3,15 ≤ P ≤ 63
(iki 30 % of weight)		 ≤2% ≤0,03% ≤0,3% Wood and others
industries
wood biomass
by-products