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DIN plus pellets or EN plus pellets .pdf



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Azeus Machinery Co.ltd

Email: info@biopelletmachine.com
Website: www.biopelletmachine.com

DIN plus pellets or EN plus pellets

Keywords:DIN plus pellet certification, EN plus pellet certification system, pellet
quality certification, DIN Plus certification, DIN plus, EN plus pellets,biomass wood
pellet,biomass pellet market,DIN pellet mill,EN pellet mill

As biomass wood pellet is gradual becoming commercial fuel resource for residential
and industrial heating, the pellet quality certification standards appear following.
However, there are not yet unified standard for pellet quality certification in current
international biomass pellet market. Two popular pellet quality certification standards

accepted by regional pellet producers and pellet consumers, are the DIN plus pellet
certification and EN plus pellet certification. That is to say, pellets certificated by DIN
and EN standard, are commonly accepted as “premium”. The introduction of biomass
pellets quality standard for residential and industrial pellets will not only keep a clear
account of consumption but also will control the quality of products.

The DIN plus Pellets

The DIN refers to Deutsch Industry Norm. DIN Plus certification scheme for high
quality wood pellets plant was firstly developed by DIN CERTCO in 2002. It is
developed on the base of the German DIN 51731 certification and the Austrian
ÖNORM M 7135 certification. This scheme includes the establishment of internal
quality management and annual, external controls without announcement. DIN plus
contributed a lot to the promotion of the residential pellet market in Germany and
today, it is the most important quality label for high quality wood pellets worldwide.
In total, 102 pellet producers are DIN plus certified and 61 of these are based in
Germany. For producers in France, Belgium and Switzerland, the DIN plus certificate
certainly is a instrument for selling pellets in their own home countries, while it
provides access to Central European residential pellet heating markets to
export-oriented producers in Poland, the Czech Republic, Romania and Argentina.

Parameters of the DIN Plus Pellets

Parameter
Diameter
Length
Bulk density
Heat value
Moisture content
Abrasion
Ash content
Chlorine content
Sulfur content
Nitrogen content
Heavy metals

Unit
mm
/
kg/dm³
MJ/kg
%
%
%
%
%
%
%

DIN plus
4~10
<5×D
> 1.12
> 18
10
< 2.3
< 0.5
< 0.02
< 0.04
< 0.3
regulated

DIN 51731
4~10
<50mm
1.0 - 1.4
17.5-19.5
12
/
< 1.5
< 0.03
< 0.08
< 0.3
regulated

Ö NORM M 7135
4~10
<5×D
> 1.12
> 18
10
< 2.3
< 0.5
< 0.02
< 0.04
< 0.3
not regulated

The EN plus pellets

The EN refers to European Norm. The EN plus pellet certification system has been
introduced in Germany in 2010. Since then it has spread fast to the surrounding
countries such as Austria, Belgium, Canada, Czech Republic, Denmark, France, Italy,
Lithuania, Poland, Romania, Slovenia, Spain, United Kingdom and even the US. In
2012, around 3,2 million tons of actual EN plus pellets were manufactured. Now,
already 90% of produced pellets in Austria and Germany are EN plus.
Parameters of the EN Plus Pellets

Parameter

Unit

ENplus-A1

ENplus-A2

test according to

Diameter

mm

6~8

6~8

/

Length

mm

3.15≤L≤40

3.15≤L≤40

/

Bulk density

kg/m³

≥600

≥600

EN 15103

Heat value

MJ/kg

≥16.5

≥16.3

EN 14918

Moisture content

max-%

≤10

≤10

EN 14774-1

Fine material(<3.15mm) max-%

≤1

≤1

EN 15149-2

Ash content

max-%

≤0.7

≤1.5

EN 14775

Chlorine content

max-%

≤0.02

≤0.03

EN 15289

Sulfur content

max-%

≤0.05

≤0.05

EN 15289

Nitrogen content

max-%

≤0.03

≤0.05

EN 15104

Heavy metals

mg/kg

regulated

regulated

EN 15297


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