There are many purification engineering testing companies with CMA qualification. Zhongke Testing, Chinese Academy of Sciences, is a third-party cleaning testing company with CMA qualification certification. According to the specific scope of clean room inspection, it generally includes: environmental grade of clean room, engineering acceptance inspection, including food, health care products, cosmetics, bottled water, milk production workshop, electronic product production workshop, GMP workshop, hospital operating room, animal laboratory, biosafety laboratory, biosafety cabinet, clean workbench, cleanroom, etc. Test items: wind speed and air volume, air exchange times, temperature and humidity, pressure difference, suspended particles, planktonic bacteria, settling bacteria, noise, illumination, etc. See relevant standards for clean room testing for details.
CMA qualification certificate is as follows: