Guidelines for viable & non -viable counts in gmp areas (As per WHO,2011)
Manufacture of sterile pharmaceutical preparations, four grades of clean areas are distinguished as follows: Grade A: The local zone for high-risk operations, e.g. filling and making aseptic connections. Normally such conditions are achieved by using a unidirectional airflow workstation. Unidirectional air flow systems should provide a homogeneous air speed of 0.36–0.54 m/s (guidance value) at […]
