Calculation method of biogenic carbon content of wood and wood products
1Key Takeaways
The National Standardization Administration of China has published the standard GB/T 44290-2024, which provides a method for calculating bio-carbon content in wood and wood products. This standard will come into effect on April 1, 2025. GB/T 44290-2024 defines the technical requirements and procedures necessary to acc…
2Expert Interpretation
This standard specifies in detail the calculation method of biogenic carbon content in wood and wood products, including carbon content, absolute dry mass determination and conversion formula for biogenic carbon dioxide.
1. Background and significance of the standard
With the increasing global attention to environmental protection and carbon neutrality goals, the role of wood and wood products in mitigating climate change has received much attention. This standard (GB/T 44290-2024) aims to provide a scientific and unified calculation method for the biogenic carbon content of wood and wood products, helping the industry achieve sustainable development goals.
2. Comparison of standard frameworks
| Standard dimensions | GB/T 44290—2024 | Comparison with international standards (ISO) |
|---|---|---|
| Scope of application | Calculation of biogenic carbon content in wood and wood products | ISO 14067:2018 (Carbon footprint quantification) |
| Core indicators | Carbon content, biogenic carbon content, biogenic carbon dioxide | Calculation of greenhouse gas emissions (ISO 19694-1:2021) |
| Technical requirements | Carbon content determination with an accuracy of 0.01 | Carbon tracking of the wood supply chain (ISO 38200:2018) |
3. Recommendations for implementation of the standard
Case study: Calculation of carbon content of medium density fiberboard
- Determine the moisture content (e.g. 6.8%) and calculate the absolute dry mass.
- Use formula (1) to calculate the carbon content of the wood product (approximately 0.43).
- Combining the density (738 kg/m³) and the volume (25 m³), the amount of biogenic carbon dioxide is calculated to be 27,237 kg.
4. Analysis of Technological Evolution
From the early research on wood carbon content (such as LY/T 1788) to the modern biocarbon quantification standard, it reflects the industry's upgraded attention to the goal of carbon neutrality. In the future, with the advancement of technology, the calculation method of biocarbon content will be more accurate and in line with international standards.