Fig. 7From: Low-formaldehyde emission composite particleboard manufactured from waste chestnut burDimensional stability of composite particleboard. a The effect of the weight ratio of chestnut bur/poplar on the 2hTS of particleboard. b The effect of the weight ratio of chestnut bur/poplar on the 2hWA of particleboard. Error bars indicate standard deviations. Different letters in the figure indicate that means are significantly different (p < 0.05)Back to article page