小型チャンバーADPACを用いた建材・施工材からの室内汚染化学物質放散速度の測定

概要

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In this study, emission rates of Aldehydes and VOCs were investigated by using a small scale stainless steel chamber, ADPAC (ADvanced Pollution and Air quality Chamber). The ADPAC system, as defined by ASTM and ECA, is consisted of a small chamber and purified air supplying unit which supplies humidified controlled air at a given ventilation rate. A stainless steel seal box with Teflon sealing was utilized to control chemical emission only from the oneside surface of the test piece. Air quality of the chamber was measured without a test piece to make sure that the background concentration inside the chamber was negligible. Emission rates from wallpaper adhesives pasted on plasterboards were investigated. The test pieces were produced at the day of measurement, and the first measurement was conducted 15 hours after the production of the test piece. Measurements were repeated 4, 7, 14, and 28 days after. Emission rates were higher in the earlier period, but decreased rapidly after 1 or 2 weeks.
2000-06-20