Fig. 1. Mimetic diagram of accelerated formaldehyde collection process system (Samheung energy Co., Korea).
Fig. 2. Actual device of accelerated formaldehyde collection process system.
Fig. 3. Average level of formaldehyde emissions by grade in desiccator method.
Fig. 4. Formaldehyde emissions per hour by acceleratedcollection method of medium density fiberboards(MDF) 4.5 mm at 100 °C.
Fig. 5. Correlation of accelerated collection method with desiccator method from MDF (R2=0.8936).
Fig. 6. Correlation of accelerated collection method with desiccator method from particle boards (PB) (R2=0.8872).
Fig. 7. Comparison of formaldehyde emission accord-ing to exposed area in accelerated collection method for 1 h from MDF (4.5 mm).
Fig. 8. Comparison of formaldehyde emission accord-ing to exposed area in accelerated collection method for 1 h from PB (18 mm).
Fig. 9. Comparison of formaldehyde emission accord-ing to exposed area in accelerated collection method for 2 h from MDF (4.5 mm).
Fig. 10. Comparison of formaldehyde emission accord-ing to exposed area in accelerated collection method for 2 h from PB (18 mm).
Fig. 11. Correlation of accelerated collection method of MDF (163 cm2×2) for 1h withdesiccator method (R2=0.8988).
Fig. 12. Correlation of accelerated collection method of PB (163 cm2×2) for 1 h with desiccator method (R2=0.8921).
Fig. 13. Correlation of accelerated collection method with desiccator method (R2=0.8971).
Fig. 14. Comparison of desiccator method and accel-erated collection method for 10 materials.
Table 1. Physical properties of medium density fiberboards (MDF) & particle boards (PB).
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