In practical terms (that is, for testing purposes), what is the maximum number of Applied Parts that anyone can remember coming across? think

Most Electrical Safety Testers seem to expect up to ten (usually marked to indicate the connections of the 12-lead ECG). One that I know of only has five AP sockets, whilst another allows up to 14 when using an adaptor.

In case anyone is wondering (?), I'm interested in this as I want to set a sensible maximum number in a database.