90.93 Standard confirmed Dec 11, 2025
ISO
ISO/TC 44/SC 13 Brazing materials and processes
International Standard
25.160.50 Brazing and soldering
Published
This document specifies the classification of fluxes used for brazing metals and characterizes these fluxes on the basis of their properties and use, and gives technical delivery conditions and health and safety precautions.
This document covers two classes of flux, FH and FL. Class FH is used for the brazing of heavy metals (steels, stainless steels, copper and its alloys, nickel and its alloys, precious metals, molybdenum and tungsten). Class FL is used for the brazing of aluminium and its alloys.
PUBLISHED
ISO 18496:2020
90.93
Standard confirmed
Dec 11, 2025