Miele PG 8504 Operating Instructions Manual page 7

Intended use
The use of a suitable carrier (mobile unit, basket, module, insert, etc.)
is important to ensure the adequate cleaning of the load. Examples
are given in the section "Areas of application".
This machine is programmed to carry out the final rinse with mains
water or with processed water of a quality to suit the application (e.g.
purified water, fully demineralised water or demineralised water).
It is particularly important to ensure the appropriate water quality for
the rinse and final rinse of items for analytical purposes.
The machine can be qualified for process validation.
The machine fulfills the requirements of Directive 2006/42/EC on
machinery
7