Demonstrate consistent high product quality with our certification for wood pellets
Wood pellets are considered a 100 percent CO2-neutral fuel and contribute considerably towards a reduction in CO2 emissions. They have developed into a real alternative to heating oil and natural gas. Thanks to these positive properties, both wood pellets and pellet boilers have spread continuously.
Our "DINplus class A1 wood pellets" certification in line with international standards allows you to stand out from the competition and provide proof that your wood pellets are consistently of high quality. The DINplus quality mark strengthens your customers' trust in you, allowing you to meet the rising demand for certified wood pellets and thereby improve your market position.

Our DIN-plus-mark and its message of quality are established worldwide, recognized by specialists, and enjoy the confidence of consumers. Our experts have extensive experience in the industry and cooperate with qualified testing laboratories when assessing your products.
Do you want to know more about our certification for wood pellets? Contact us for more information!
Improve customer confidence through sustainable wood pellets
Prove the high quality of your wood pellets with our certificate to secure the confidence of your customers and an excellent position in the market. Our DINplus certification program ensures that wood pellets emit minimal pollution with the lowest ash content for high fuel values, and help avoid malfunctions in pellet boilers. Our certification provides your customers with a decision-making aid and guide in a complex and growing market.

Our services for the testing and certification of your wood pellets
International standard for wood pellets:
- DIN EN ISO 17225-2 (A1) - Solid biofuels - Fuel specifications and classes - Part 2: Graded wood pellets
- Part of the European standard for quality assurance in the wood pellet supply chain:
DIN EN 15234-2 - Solid biofuels - Fuel quality assurance - Part 2: Wood pellets for nonindustrial use

Our testing and certification for wood pellets ensures, among other things, high quality levels in the production of wood pellets. We test products in qualified and recognized testing laboratories. Some of the tested properties are:
- Water content
- Bulk density
- Fine fraction
- Calorific value
- Mechanical strength
- Chemical contamination
In addition, we also require a lower ash content than the international standard specifies and we determine the so-called ash melting temperature. This temperature is important in estimating the tendency to generate slag.
A certificate is awarded if the result of the evaluation is positive. It is valid for five years and can then be extended by five years at a time.
DINplus wood pellets – recognition for manufacturers and consumers
By developing quality standards and marks we have become a reliable companion to the pellet industry. DINplus certification is trusted by sellers and manufacturers of wood pellets not only in Europe, but wherever high-quality wood pellets are purchased.
Our aim is to test and certify product quality at all stages of the process chain. To implement this holistic approach, we will assist you with extensive services, like the certification of transport and storage logistic for the wood pellet and fuel industry.
Find out about our wood pellet certification now!
Ask the expert: Your chance on the growing market for wood pellets

Consumers around the world are becoming more and more environmentally aware. They are attaching increasing importance to renewable energy sources. This makes heating systems based on wood pellets a huge growth market in the private sector.
Our product manager for the testing and certification of wood pellets, Maximilian Quietzsch, explains why manufacturers and retailers without certification have no chance in the competitive growth market for wood pellets.
The most important questions and answers about wood pellet certification
Do you want to know more about our wood pellet testing and certification services? We have compiled the most frequently asked questions for you below.
Application for certification
Application form Products | 192 KB | Download | |
Application form for Sub-Licence | 249 KB | Download | |
Certification Scheme Wood Pellets (English version) | 609 KB | Download | |
Certification Scheme Wood Pellets (French version) | 438 KB | Download | |
Certification Scheme Wood Pellets (Polish version) | 664 KB | Download | |
Certification Scheme Wood Pellets (Russian version) | 633 KB | Download | |
Certification Scheme Wood Pellets (Spanish version) | 608 KB | Download | |
Schedule of Fees Wood Pellets | 288 KB | Download | |
General Terms and Conditions | 326 KB | Download |
More about wood pellets
Leaflet: Wood pellets for identification of packing | 150 KB | Download | |
Leaflet: Retailer Wood Pellets | 152 KB | Download | |
Flyer: Certification for Wood Pellets | 264 KB | Download | |
Flyer: Wood Pellets - Your Plus for Quality | 389 KB | Download | |
Checklist: Wood Pellet Certification | 167 KB | Download |
Certificate holder and testing laboratories
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