Solution

The accuracy of the aerosol photometer indication affects the test results of filtration efficiency to a certain extent. For industries such as pharmaceutical companies with higher cleanliness requirements, the calibration of photometers also has higher requirements. Aerosol photometers usually should be calibrated annually.

BSC is a negative pressure filtration and exhaust equipment based on the principle of high-efficiency filtration and airflow dynamics. It will protect samples from external contamination and to better protect testing personnel from being infected by pathogenic...

Clean room testing is the process of monitoring the air quality in a clean room to verify it meets test specifications and relevant test standards like ISO14644-1, ISO 144644-2, and ISO 14644-3.