Process challenge devices and Holders

The holder is designed to mimic the cleaning challenges posed by a
large process load during the washing cycle and can be fixed on the
tray, which allows reproducible location of the cleaning indicator in the
washer-disinfector. When CDWA4 is placed within the holder, half of
the test soil is obscured, thus simulating the joint of a surgical
instrument, with water stream hitting it indirectly. The other half of the
test soil is covered by a mesh, thus posing a difficulty for water stream
to reach it, mimicking shadowed or occluded surfaces.
The new design of CDWAH optimizes the control of the washerdisinfector`s ability to force water and detergent into and onto the test soil