Скачать или смотреть Q1: What are the technical requirements for the core control indicators of a clean room?

A: The cleanroom must meet five core parameters: . Suspended Particles: ISO Class 5 (Class A) requires ≤3,520 particles/m³ for particles ≥0.5μm, with dynamic monitoring needing one sampling point for every 4㎡ . Microbial Limits: Settling bacteria ≤1 CFU/4 hours (using φ90mm petri dishes), contact plate method ≤1 CFU/dish . Pressure Differential Gradient: The pressure differential between areas of different cleanliness levels must be ≥10 Pa, and the pressure differential between the biosafety cabinet and the room should be maintained between -20 and -40 Pa . Temperature and Humidity: Class C area temperature should be maintained at 20~24°C, relative humidity 45%~65%, with precision control of ±1°C/±5% RH . Air Speed: In the Class A unidirectional flow area, the vertical air speed should be 0.36~0.54 m/s, with turbulence ≤15%.