BS EN 319

The internal bond strength and the resistance to pull-out of wood-based panels are determined by using BS EN 319. This standard shall provide a guide for manufacturers to examine the bond quality and structural strength of materials such as plywood, particleboard, MDF, fiberboard, and OSB panels. Much used in the construction, furniture, packaging, and interior design industries, internal bond testing determines the resistance of materials to layer separation, delamination, and damage in the structure. Presto offers advanced Universal Testing Machines suitable for tensile and internal bond strength testing with accurate load measurement and software-based data analysis.

This standard specifies a method for determining tensile strength perpendicular to the plane of wood-based panels, commonly known as internal bond strength. Testing is conducted by applying a controlled tensile load to conditioned specimens until failure occurs. The tensile strength value is calculated using the maximum force recorded during the test along with specimen dimensions. The standard applies to particleboards, fiberboards, cement-bonded particleboards, and OSB materials used in industrial and structural applications.

The standard supports performance evaluation and quality verification of wood-based panel materials used in different industrial sectors. Presto provides advanced testing systems with precise force application, stable gripping arrangements, and software-based reporting solutions suitable for laboratory and industrial internal bond strength testing applications.