A new part of the ISO 14644 series is in development – ‘ISO/DIS 14644-17
Cleanrooms and associated controlled environments -- Part 17: Particle Deposition Rate applications’.
The standard focuses on Particle Deposition applications, and covers the missing information in existing documents. This new chapter could be applied in many industries such as assembly of microelectronic like sensors and actuator, displays and batteries, optical devices, space industry, automotive, medical devices, and in processes dealing with microbiological contamination.
The new document can be used as a standard in combination with the existing cleanroom standards (ISO 14644 and ISO 14698), and completes coverage of the range of particles that can cause unwanted surface contamination.
The focus is with the particle Deposition Rate level (PDRL), which is the particle deposition rate (cumulative number of particles per sqm per hour) times the observed particle size D divided by 10.
Posted by Dr. Tim Sandle, Pharmaceutical Microbiology
