Brief introduction: This test chamber is in accordance with the guiding principles for stability test of pharmacopoeia 2005 and gb10586-2006. The conditions for stability test of ICH2003Q1A(2) /GMP 2005 Chinese pharmacopoeia: 1, high humidity test: 25 ℃ plus or minus 2.0 ℃ 90% r.h. plus or minus 5% r.h. or 25 ℃ plus or minus 1.0 ℃ 75% r.h. plus or minus 5% r.h. / 10 days 2, the accelerated test: 40 ℃ + 30 ℃ to 2.0 ℃ 75% r.h. + 5% r.h. or plus or minus 1.0 ℃ 65% r.h. plus or minus 5% r.h. / 180 days 3, long-term experiment: 25 ℃ plus or minus 2.0 ℃ 65% r.h. plus or minus 5% r.h. / 365 days Technical parameters: 1. The temperature control range: 0 ~ 65 ℃ 2. The temperature fluctuation: plus or minus 0.5 ℃ 3. Humidity control range: 40~95%RH 4. Humidity deviation: 3%RH 5. Temperature and humidity regulation: balance the temperature and humidity regulation 6. Working environment temperature: + 5-30 ℃ 7. Power supply: AC 220V 10% 50Hz 8. Inner tank size: 550 520 900 (mm) 9. Overall dimension: 680*720*1540 (mm)