Abstract

The emission of formaldehyde is critical factor in the evaluation of environment and health effects of wood-based composite materials. Different test methods are used in different countries. The comparison study was done between commonly used American test methods, large chamber ASTM E1333-10, and Japanese desiccator method JIS A 1460-2001 for testing Formaldehyde emission form 16mm uncoated particleboard and medium density fiberboard (MDF) under the different conditioning days, air exchange rates, and loading ratios.In case of reduction of the loading ratios, the good correlation between the large chamber method and the desiccator test could be obtained for particleboard tested. With the reduction of the loading ratios, the correlation between the large chamber method and the desiccator test was improved. At the loading ratio of 0.04ft2/ft3, the coefficients of determination (R2) showed 0.995 for 0.5 AC/HR, and 0.989 for 1.0 AC/HR. Large chamber emission rate at 1.0 AC/HR was 0.727 time Large chamber emission rate at 0.5 AC/HR.

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