GB/T 33041-2016 in English
VALIDDecay and termite hazard zone for above-ground applications of wood in China
- Issued on:2016-10-13
- Implemented on:2017-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 33041-2016中国陆地木材腐朽与白蚁危害等级区域划分》由TC41（全国木材标准化技术委员会）归口，TC41SC1（全国木材标准化技术委员会基础标准分会）执行，主管部门为国家林业和草原局。
Introduction
Interpretation of China's regional classification standard for wood decay and termite damage
1. Background of standard formulation
With the widespread application of wood materials in China in the fields of construction and outdoor facilities, the problems of wood decay and termite damage have become increasingly prominent. To ensure the durability and safety of wood materials, this standard divides the hazard levels of China's land areas based on the Schaeffer meteorological index and termite distribution, providing a scientific basis for anti-corrosion design and anti-termite measures.
2. Comparison of standard frameworks
| Standard dimensions | Wood decay grade classification | Termite damage grade classification | Comprehensive damage grade area |
|---|---|---|---|
| Meteorological index (SCI) | - Above 70: High damage - Below 35: Low damage - 35~70: Medium damage | - No black-chested Reticulitermes and Formosan coptotermes: Low damage - Only black-chested Reticulitermes: Medium damage - Both termites exist: High damage | Comprehensive damage grade is divided according to the overlapping area of meteorological index and termite distribution |
3. Implementation recommendations
Case analysis: Implementation recommendations for anti-corrosion design in a certain region
Take Yunnan Province as an example. This region is a high-risk area for wood decay and termites. When designing outdoor wood materials, wood with high-strength anti-corrosion performance should be selected, and anti-termite treatment agents and protective measures should be adopted in combination with local termite control needs, such as:
- Select wood treated with heat or chemical preservatives
- Set up well-ventilated structures to reduce humidity
- Regularly inspect and maintain wood materials
- Use anti-termite barriers and monitoring systems
4. Analysis of technology evolution
This standard combines meteorology and ecology methods to achieve accurate prediction of wood decay and termite damage. Compared with traditional empirical prevention and control methods, this standard improves the pertinence and effectiveness of anti-corrosion design through scientific data support.
5. Conclusion
This standard provides an important reference for the application of Chinese wood materials in the fields of construction, outdoor facilities, etc. In the future, with climate change and technological progress, the hazard level classification standards will continue to be optimized to adapt to the complex and changing application environment requirements.
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