MARILYN MONROE'S AWARDS. A great career of film work for Marilyn Monroe resulted in some outstanding recognition of her talents with both nominations for multiple awards; fifteen nominations and actual awards won in my film career of that lifetime.
Brass is a mixture of zinc (Zn) and copper (Cu). Both of these elements are not magnetic. When we mix zinc and copper to form the alloy brass, we also end up with a non-magnetic compound. So, brass is not magnetic. Like aluminum, copper, and zinc, brass does interact with moving magnets.
Call your local yard and see what they require. Most consider dirty brass to be brass with other METAL in with it (steel rivets, aluminum, screws, etc). I have taken in brass with a small amount of spackle on it and they still considered it clean since it did not have any other non-brass metal on it.