Adhesives. Biological durability. Guide for assessing adhesives used in different hazard classes

This document outlines the assessment guidelines for the biological durability of plywood when utilized across various hazard classes. It serves as a technical reference for evaluating the resistance of engineered wood products against biological deterioration, including fungal attack and insect infestation. The guidance provides a structured framework for classifying service conditions and determining appropriate durability performance levels. By specifying testing methods and evaluation criteria, it supports consistent decision-making in product selection and design for construction and interior applications. The content aligns with established international principles for assessing material longevity under specific environmental exposures. It addresses the technical parameters necessary for ensuring that plywood meets the required performance standards in diverse usage scenarios. This approach facilitates harmonization in the assessment process across different regions and industries. The document is intended for use by manufacturers, testing laboratories, and certification bodies involved in the evaluation of wood-based panels. Its provisions help in establishing clear benchmarks for quality assurance and compliance within the timber sector.