環(huán)境箱用途：
Application of environmental chamber
環(huán)境箱可以提供標準的測試環(huán)境（如的溫度、相對濕度、空氣置換率和氣流速度）或模擬真實的室內(nèi)環(huán)境，并測試各種室內(nèi)材料和產(chǎn)品的污染物釋放率和釋放特性，進而可以：
Environmental chamber can provide standard test environment （such as appointed temperature, relative humidity, air exchange rate and air velocity） or simulate real indoor environment. It can be used to test the emission rate of contaminants from various indoor materials and products and the emission features so as to further:
l 確定環(huán)境變量對材料和產(chǎn)品釋放率和釋放特性的影響；determine the influence of environment variables on the emission rate and emission features of materials and products
l 根據(jù)釋放特征劃分材料和產(chǎn)品的等級；graduate materials and products according to their emission features
l 開發(fā)和驗證預測室內(nèi)空氣污染的模型；develop and verify models used to predict indoor air pollution
l 根據(jù)室內(nèi)污染物數(shù)據(jù)或預測模型對室內(nèi)空氣質(zhì)量（IAQ）進行評價；value indoor air quality （IAQ） according to indoor contaminant data or prediction models
環(huán)境箱的測試原理：
Test principles of the environmental chamber
環(huán)境箱測試污染物釋放的過程可以概述為：將材料和產(chǎn)品或其樣本置于測試箱中，根據(jù)需要調(diào)節(jié)箱中的溫度、相對濕度和空氣置換率等環(huán)境條件；在環(huán)境箱的排氣口或內(nèi)部取樣；采用適當?shù)姆椒ǚ治鰵怏w樣本，識別主要的污染物及其濃度隨時間的變化；然后根據(jù)測量的濃度確定材料和產(chǎn)品的釋放率和釋放特性。
The process for the environmental chamber to test the emission of contaminants can be summarized as: put materials and products or their samples into the test chamber, and then adjust the environmental conditions such as temperature, relative humidity and air exchange rate inside the chamber according to requirements, and then take samples at the air outlet of the environmental chamber or from the inside, and then adopt proper methods to analyze the air sample so as to identify the main contaminants and changes of their densities with times, and finally determine the emission rate and emission features of materials and products according to the tested densities.
