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Control of relative humidity in the static bag emission test method by adding water and its effect on formaldehyde emission intensity

백을 이용한 정적 방출시험 방법에서 수분공급을 통한 상대습도조절과 포름알데하이드의 방출강도에 미치는 영향

  • Received : 2011.05.12
  • Accepted : 2011.08.11
  • Published : 2011.08.25

Abstract

Rapid screening method for the determination of the emissions of pollutants from vehicle interior parts and materials have been developed as ISO 12219-2 which is using bag and based on a static condition. The method was not controlled humidity in the test bag, so it is not suitable test method for formaldehyde emission test which is highly related to humidity condition. In this study, possibility of control humidity in the static test bag by adding extra water and the effect of humidity condition for formaldehyde emissions have been investigated. The relative humidity in the test bag was affected not only amount of water added also material of test bag and test specimen. The emission intensity of formaldehyde was increased according to increasing relative humidity in test bag. But excessively supplied water was condensed on the inner surface of test bag and surface of sample specimen that were sorption formaldehyde and were reduced its emission intensity.

Keywords

Car;Automobile;cabin;VOCs;interior;bag method

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