"wls < 1.1 L(1.16 QT)2.0Flat UtensilsPlates, Saucers3.0 4-101.14 Copper, Use Limitation.*(A) Except as specified in ?? (B) of this section, copper and copper alloys such as brass may not be used in contact with a food that has a pH below 6 such as vinegar, fruit juice, or wine or for a fitting or tubing installed between a backflow prevention device and a carbonator. (B) Copper and copper alloys ma" . . . . .