PRODUCT INFORMATION
6
Section 2-3 Flow Diagram, Continued
Q-Gard
Purification
Pack
The Q-Gard Purification Pack is used to remove ions and organic molecules from the
feedwater. The term “Q-Gard Pack” replaces “Q-Gard Purification Pack” for the
remainder of this User Manual unless otherwise noted.
The Q-Gard Pack is a consumable. A consumable is something that is periodically
changed out for a new one during the maintenance of the Milli-Q System.
There are different types of Q-Gard Packs. The use of each Q-Gard Pack is dependent
upon the type of feedwater.
Type Description
Q-Gard T1 Pack
The Q-Gard T1 Pack is used when the feedwater
comes from RO, distillation or Electrodeionisation
(EDI). An example of RO or EDI feedwater is the
water coming from either a Millipore RiOs System or
Elix
®
Water Purification System. This type of
feedwater typically has some ions but contains little
organic, particulate and colloidal contamination.
Q-Gard T2 Pack
The Q-Gard T2 Pack is used whenever the feedwater
comes from a source other than mentioned above.
The same feedwater would have a Fouling Index 5.
Q-Gard T3 Pack
The Q-Gard T3 Pack is used instead of a Q-Gard T2
Pack whenever the feedwater has a Fouling Index > 5.
UV 185 nm
Lamp
The dual wavelength UV 185 nm Lamp emits light at 185 nm (for TOC reduction) and
at 254 nm (Germicidal action). The UV 185 nm Lamp is used to kill bacteria and to
reduce the levels of organic molecules in the water.
The UV 185 nm Lamp is a consumable.
Quantum
Cartridge
The Quantum Cartridge is used to remove trace levels of ions and organic molecules.
The Quantum Cartridge is a consumable.
Type Description
Quantum TIX Cartridge
The Quantum TIX Cartridge contains only ion
exchange resin. This type of Quantum Cartridge is
used when maintaining absolutely trace levels of ions
is critical.
Quantum TEX Cartridge
The Quantum TEX Cartridge contains ion exchange
resin and synthetic carbon. These purification media are
used when the Milli-Q Water needs to have both trace
levels of ions and trace levels of organic molecules.
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