This standard prescribes the testing method to determine the surface glueability (tensile strength perpendicular to the surface) of wood particle boards and other lignocellulosic boards. It evaluates how well the surface layers of the board resist delamination when a bonded test block is pulled under tension.
Method of test for wood particle boards and boards from other lignocellulosic materials, Part 22: Determination of surface glue ability test
Quick Reference Values
conditioning temperature27 ± 2 °C
conditioning relative humidity65 ± 5 %
oven drying temperature103 ± 2 °C
Key Formulas
Moisture Content (%) = [(Initial Mass - Oven Dry Mass) / Oven Dry Mass] × 100
Density (kg/m³) = Mass / (Length × Width × Thickness)
Modulus of Rupture (N/mm²) = 3PL / 2bd²
Practical Notes
Ensure specimens are properly conditioned at 27±2°C and 65±5% RH until they reach constant mass before initiating any mechanical tests.
For water absorption and swelling tests, adhere strictly to the exact immersion durations (typically measured at 2 hours and 24 hours).
When preparing samples for flexural and tensile tests, edges must be cleanly cut and free from defects to prevent premature failure or stress concentrations.