Chamber for determination of volatile organic compound emissions from indoor products and furniture: Design consideration and practice

he chamber is generally used to test VOC emissions from indoor products and furniture in European countries and the US. Presents the fundamentals of chamber methods, including ventilated chamber method and closed chamber method. Testing time of the ventilated chamber method adopted aboard is 7 to 28 days in general. The C-history method, developed by Tsinghua University, using closed chamber can shorten the testing time to 3 days or even less. Based on the fundamentals of chamber methods, presents a design scheme of the chamber according to which a 30 m³ full scale chamber was built. This chamber can be used as both ventilated and closed chamber. Evaluates its performance by LIFE standard reference and the testing results show that the recovery rate of ventilated chamber is 86.7% and closed chamber is 90.6%, satisfying the demand of standard ISO 16000-9 and ASTM D6670.