Classifying low formaldehyde emission from blockboard by gas analysis method and desiccator method

Abstract

Abstract. The paper studied formaldehyde emission (FE) of E 0 class blockboards by desiccator and gas analysis method. Results showed that for the same formaldehyde emission value got from desiccator method, the gas analysis (GA) values were quite different. It was suggested to use gas analysis method to evaluate formaldehyde emission at low formaldehyde content. The main reason for different gas analysis values was moisture content (MC), the lower the board moisture content the smaller the formaldehyde emission value. Gas analysis value was very sensitive to specimen's moisture content, it was suggested to keep low moisture content could be a solution to decrease formaldehyde emission for blockboards.