This standard specifies the requirements relating to: Nickel base alloy NI-B21001 (NiCr15B4) Filler metal for brazing Borided foil for aerospace applications.
DS/EN 3935:2001 history
2001DS/EN 3935:2001 Aerospace series - Nickel base alloy NI-B21001 (NiCr15B4) - Filler metal for brazing - Borided foil