environmental chamber can provide standard testing environment (such as appointed temperature,relative humidity, air exchange rate and airflow rate) or simulate real indoor environment, and test the pollutant release rate and release properties of various indoor materials and products. then it can:confirm the influence of environment variables on the release rate and release properties of materials and products;
grade materials and products according to their release properties;develop and validate the proposed model of indoor air pollution;evaluate indoor air quality (iaq) according to the data and proposed model of indoor pollutant；
environmental temperature：5℃~35℃
environmental humidity：≤90%r.h
requirements for environmental：cleanliness no pollutant source in the surrounding environment
adjustable range of temperature：from 15 to 40℃high temperature cleaning 250℃以上
adjustable range of humidity：40~70%r.h.(20~30℃)
pressure：10±5pa
temperature fluctuation：±0.3℃ ( fluctuation)
temperature deviation：±0.5℃ ( deviation)
humidity fluctuation：±2.5%r.h
humidity deviation：±3%r.h. ( deviation)
air exchange rate：0.2~2 /h±5%(optional with specifications of greater exchange rate )
power：(alternating current 380v/50hz/ three-phase power supply 4/5 wiring system)
background concentration of methanol：smaller than 15µg/m³ the lowest 6µg/m³
background concentration of voc：single voc has a concentration smaller than 2µg/m³
dust filtrated tvoc has a concentration smaller than 20µg/m³
rate of recovery：toluene twelve has a recovery rate lager than 80%
clean air system：standard configuration