GB/T 29900-2013

This standard specifies a field test method for evaluating the effectiveness of wood preservatives against decay fungi when wood is placed in direct contact with the ground. It is applied in the forestry and wood preservation industries to simulate real-world conditions for treated wood used in outdoor applications like fence posts, utility poles, and landscaping timbers. The method provides a standardized protocol for assessing preservative performance under natural decay hazards, ensuring reliable data for product development and regulatory compliance.