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IMPROVING YOUR LAB WATER SYSTEM
Water
purification is a costly business. You want to provide your lab with the highest
quality of water at least amount of cost.
Use the correct quality of water for the correct application.
The
National Committee for Clinical Laboratory Standards (NCCLS) has specified three
types of water quality:
Type I is suitable for analytical testing
requiring minimal interference and maximum precision and accuracy
Type II is suitable for analytical
tests where some bacteria can be tolerated
Type III is suitable for general
washing and as feed water for producing higher grade water
Common lab
applications that use different types of lab water
HPLC
PTFE
Healthcare and pharmaceutical
GC-MS
DNA/RNA
There are
several water treatment processes
Distillation
Deionization
Reverse osmosis
Activated carbon filtration
Ultrafiltration
Ultraviolet oxidation
Electrodialysis (EDI)
Generally,
you will want to use a central water purification system such a reverse osmosis
for your general lab requirements
and a point of use purification system your ultra-pure water requirements.
Most labs
will have variable water requirements as your business grows. Water quality and
quantity that is satisfactory
today may not meet your requirements in a few years. You want a flexible and
modular design that can grow
with you and your lab facility.
The right
design that meets your needs today and is flexible enough to grow with you is
the most important consideration.
The next equally important consideration is the regular, preventive maintenance
of the system. Most systems will alert
users of when the useful life of each component is near depletion. Water quality
should be manually checked on a
scheduled basis.
The last
consideration is to make sure the purified water is dynamic. You want the water
to circulate when not being
consumed. Sitting water almost guarantees what is purified will become
contaminated.
Literature\IMPROVING THE PURITY OF YOUR LAB WATER.pdf
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