Glossary: A
A/C
Temperature and humidity control should be considered as part of the full cleanroom HVAC…
Action Level
An established microbial or airborne particle level that, when exceeded, should trigger appropriate investigation…
Actuators
An actuator is a mechanical component that can move a mechanism or system. In…
Adjustable height feet
Feet that can be adjusted to ensure a level system is created, even on…
Advisory Committee on Dangerous Pathogens
The Advisory Committee on Dangerous Pathogens’ (ACDP) role is to provide scientific advice on…
Air changes per hour
The air change rate, or air changes per hour, is the amount of time…
Air cleanliness
A generic term. With regards to cleanrooms, air cleanliness is usually measured by taking…
Air Conditioning
See temperature and humidity control.
Air differential
See pressure cascade.
Air handling units (AHU)
An AHU or Air Handling Unit is used to regulate air within an HVAC…
Air lock
Airborne particle counts
Airborne particle counts are an air sampling method, used to determine if a cleanroom…
Airborne particles
Airborne particles are sub-micron particles, which are invisible to the naked eye. As their…
Alert Level
An established microbial or airborne particle level giving early warning of potential drift from…
ANVISA
The Brazilian Health Regulatory Agency (Anvisa) is an autarchy linked to the Ministry of…
Approved Code of Practise (ACOPs)
ACOPs describe preferred or recommended methods that can be used (or standards to be…
As-built cleanroom
A cleanroom that is complete, functional and ready for operation, but without the equipment…
Asepsis
A state of control attained by using an aseptic work area and performing activities…
Aseptic Manufacturing Area
The classified part of a facility that includes the aseptic processing room and ancillary…
Aseptic Processing Facility
A building, or segregated segment of it, containing cleanrooms in which air supply, materials,…
Aseptic Processing Room
A room in which one or more aseptic activities or processes are performed. Source:…
Assisted build
Often used for international cleanroom builds, an assisted build is where a small number…