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.