Fig. 1From: Visuo-tactile and topographic characterizations of finished wood surface quality by French consumers and industrials: acceptability thresholds for raised grainLevels of raised grain according to the average visuo-tactile scores of industrial and research experts for S1 surfaces varnished with one coat, according to tree species and machining processes. Letter āaā indicates significance of differences at 5% level (ANOVA)Back to article page