Today’s standards define airborne particle monitoring in units of particles per cubic meter (particles/m 3). These standards tend to require sampling an entire cubic meter (1 m 3) to establish an ...

ISO 21501-4 is a new type of international calibration standard that deals with periodic and performance calibration of light-scattering air particle counters (LSAPC or APC) throughout the service ...

This article outlines guidelines for the testing of high pressure gases utilized in cleanrooms according to the cleanliness limits stated in the FDA cGMP guidelines, the ISO 14644-1 cleanroom ...

Both the USA cGMP 1 and EU GMP 2 dictate that cleanroom classification must be carried out according to ISO 14644-1. The version of this ISO standard released in 1999 4 was rewritten by a group of ...

The optics of particle counters and the transportation of particles in tubing between a sample inlet have often been at the center of discussion concerning the accuracy of readings. The reliability of ...