Arena Service Manual
9.4 CHEMICAL DISINFECTION
WARNING
Do not use any kind of non-approved disinfectant.
Chemicals may be infused into the flowpath for disinfection,
enhancement of disinfection, and cleaning. Some chemicals are
both cleaners and disinfectants. Baxter recommends the use only
of disinfectants and cleaning agents that are specifically mentioned
in the pertinent sections of this manual and assumes no
responsibility for equipment damage or inadequate disinfection
resulting from the use of other products.
Table 9-3. Disinfectants and Cleaning Agents
Disinfectant /
cleaning agent
Use
Actril Peracetic acid based disinfectant
Citric acid Enhanced heat disinfection. Also used as a
cleaner for bicarbonate precipitation.
Dialox Peracetic acid based disinfectant
Doxan Peracetic acid based disinfectant
Formaldehyde Disinfectant
Sodium hypochlorite
(bleach)
Effective disinfectant at 500 ppm. Also used
as cleaner for biological deposits.
Vinegar Only used as a cleaner for bicarbonate
precipitation.
9.4.1 Single Pass Chemicals
Single Pass Chemicals do not require recirculation and dwell time
in the fluid pathway for disinfection or cleaning. Recirculation or
dwelling of these chemicals may cause damage to the Instrument.
Single Pass chemicals approved for use as disinfectants in the
Instrument flowpath are sodium hypochlorite (1.75% and 5.25%)
and Amuchina.
9.4.1.1 Chlorine-based Disinfectants
The most common disinfectant is household bleach, which is
sodium hypochlorite. It is corrosive and must be rinsed from the
system within a short period. When rinsing is done at the end of
the patient treatment, the rinse water could contain some bacteria.
This may resume growth and overnight contamination can be
significant. AAMI recommends using chlorine just before using
the dialysis machine for a patient treatment (AAMI, 1990, pp. 81-
94).
9-14 157-1278-916, Rev A
March 2004
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