Evaluation of Dynamic Microchamber as a Quick Factory Formaldehyde Emission Control Method for Industrial Particleboards

Figure 4

Correlation between the 1-day and 7-day DMC values for (a) particleboard type C (low-density) and (b) particleboard types A (standard) and B (standard, low-emission) combined. Circles represent values measured from different production batches, dotted lines represent confidence bands, and numbers before circles indicate more than one measurement at the same location. No outliers exist for (a), and two values have been marked in the figure as outliers in (b). Upper and lower fences are 0.085 and 0.045 for (a) and 0.081 and 0.024 for (b). The outliers in (b) were not excluded due to low influence on fitted values (DFFITS 0.319 and 0.524).

(a)

(b)