This Part 12 of EN 13445 series specifies requirements for unfired pressure vessels and their parts made of copper and copper alloys (see 5.2) in addition to the general requirements for unfired pressure vessels in EN 13445-1:2014 to EN 13445-5:2014. NOTE 1 Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of EN 13445 series. NOTE 2 Soldered connections are presently not considered.