It is well known that the formaldehyde SER from
plywood depends on humidity (Meyer, 1986; Van
Netten et al., 1989; Salthammer et al., 1995).
Therefore, dry air was used as purge gas in order
to remove this variable
When there was no reducer
treatment, the formaldehyde SERs from plywood
were 4.4 mg m2 h1 at 30 1C and 15 mg m2 h1 at
60 1C. When the plywood was treated with the
reducers, the SERs of formaldehyde were decreased
at all temperatures.