What is the standard conditioning environment for particle board specimens?

Specimens must be conditioned at a temperature of 27 ± 2 °C and a relative humidity of 65 ± 5 %.

At what temperature should the samples be oven-dried for moisture content determination?

They should be dried in a ventilated oven at 103 ± 2 °C until constant mass is achieved.

How is the internal bond strength of the board evaluated?

It is determined by testing the tensile strength perpendicular to the surface of the board.

IS 2380

: 2000

Method of test for wood particle boards and boards from other lignocellulosic materials, Part 23: Vibration tests for particle boards

CurrentSpecializedTesting MethodMaterials Science · Wood and Other Lignocellulosic Products

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This part of the standard covers the testing method to determine the dynamic properties, primarily the dynamic modulus of elasticity and damping characteristics, of wood particle boards and other lignocellulosic boards using vibration techniques. It specifies the necessary apparatus, specimen preparation, conditioning parameters, and procedural steps to evaluate the board's response to dynamic forces.

Method of test for wood particle boards and boards from other lignocellulosic materials, Part 23: Vibration tests for particle boards

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.