Products

Technical specifications of wood chip products

Code SM1 SM1W SM2 SM3
Moisture content (min. – max.), % as received 20 % – 45 % 35 % – 55 % 35 % – 55 % 35 % – 60 %
Ash content, % of dry basis up to 2 % up to 2 % up to 3 % 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%)

Allowable quantity of the small particles fraction (<3.15 mm), % Up to 2% Up to 5% Up to 10% Up to 25%
Chlorine content (% of dry matter)4 <0.02% <0.02% <0.02% <0.03%
Raw material Stemwood  Stemwood and 

residues from

 wood procesing 

industry 

Whole trees 

without roots 

and energy crops

Loging residues
Allowable admixtures Dry leaves, dry needles4 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
Type of biomass wood pellets wood pellets wood pellets
Diameter mm 6+-1 or 8+-1 6+-1 or 8+-1 6+-1 or 8+-1
Length mm 3,15 <= L <= 40* 3,15 <= L <= 40* 3,15 <= L <= 40*
Moisture % as received <= 10 <= 10 <= 10
Ash % dry basis <= 0,7 <= 1,2 <=2
Mechanical durability % as received >= 98,0 >= 97,5 >= 97,5
Fines in biomass (<3,15 mm) % as received < 1,0 < 1,0 < 1,0
Nitrogen % dry basis <= 0,3 <= 0,5 <= 1,0
Sulfur % dry basis <= 0,04 <= 0,05 <= 0,05
Chlorine % dry basis <= 0,02 <= 0,02 <= 0,03
Ash Deformation Temperature °C >= 1200 >= 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.

Additional Information: Conditions of Trade in Biomass Products.

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.