Fresenius Medical Care 2008K Operator's Manual page 121

Testing for Disinfectant
After a chemical disinfection cycle, the machine must be checked for residual disinfectant
before initiating dialysis. A sample for testing for residual disinfectant can be obtained from a
dialysate line, the UF sample port, or the drain tube.
Table 23 – Disinfectant Detection Methods
Disinfectant
Formaldehyde
Bleach
Puristeril 340
Diacide HD
Power Failure During Chemical Disinfection
If a Chemical/Rinse or Chemical/Dwell program is interrupted, the machine will only allow
Rinse, Chemical/Rinse, or Chemical/Dwell to be selected from the "Select Program" Screen
when power is restored. A message "Mandatory Rinse" will be displayed after the Rinse
button is touched.
If a mandatory rinse cycle is interrupted by a power failure, only a Rinse program is available
in the "Select Program" screen. The entire Rinse program must be completed before the
operator can initiate dialysis.
Operator's Manual rev. K
2008K
Power Failure During Chemical Disinfection
Detection Method
Using Schiff's reagent or a commercially available formaldehyde test
such as Formalert, measure the residual formaldehyde according to
the manufacturer's directions. The level of formaldehyde should be
less than 5 ppm.
Use facility protocol for detecting chlorine levels in the fluid sample.
Test according to the manufacturer's instructions using a residual test
intended for this product.
Test according to the manufacturer's instructions using Nephretect or
another test intended for this product.
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