Applications
HWS Series cabinets are designed to provide a high degree of protection
for process products and apparatus in laboratory and production facilities.
Many critical applications in the medical, pharmaceutical, scientific
and electronics fields demand an ultra-clean work environment which
is free from biological and particulate contamination.
Typical applications include:
* Aseptic dispensing* Assembly of electronics and optics components
* Cell culturing
* Media pouring
* Preparation of medical devices/equipment
* Sterility testing
HWS Series cabinets are intended for work with non-hazardous materials
in such applications.
Australian and International Standards
AS 1386, Part 5 specifies requirements for laminar flow clean work
stations. AS 1386, Part 7 is a guide to their installation, use and
maintenance. AS 1386, Part 3 specifies requirements for cleanrooms of
Class 350 which are recommended for the installation of laminar flow
units.
HWS Series cabinets are designed and manufactured to comply fully with
AS 1386, Part 5.
Description
HWS Series cabinets are self-contained Class 3.5 horizontal laminar
flow work stations designed forinstallation on standard laboratory benches,
or on optional floor stands. Cabinets are produced with work zone width
of 90cm, 120cm or 180cm, with the option of 60cm or 75cm work zone height.
Each cabinet is factory-tested and certified by a NATA-registered laboratory
to establish compliance with the performance requirements of AS1386,
Part 5.
Vertical flow cabinets
VWS Series cabinets may be preferred for applications where the work
process is optimally presented to vertical airflow.
Operation
Horizontal laminar flow in the work zone creates a biologically-clean,
particle-free work environment.
A direct-drive fan draws in ambient air through a prefilter on the top
of the cabinet and supplies it to the work zone through a HEPA filter.
The average air velocity in the work zone is maintained between 0.45
and 0.5 m/s, with all velocity readings within 20% of their average.
Air cleanliness within the work zone is better than Class 3.5 (Class
100). To enhance work zone air cleanliness, it is recommended that cabinets
are installed in cleanrooms which provide a secondary barrier.
Arden
Pty Ltd