This British Standard specifies a range of filler metals used for brazing. The metals are grouped under the following headings:
AL Aluminum brazing alloysAG Silver brazing alloysCP Copper-phosphorus brazing alloysCU Copper brazing metalCZ Brazing brassesNI Nickel-base brazing alloysPD Palladium-bearing brazing alloysAU Gold-bearing brazing alloys
