UNI EN ISO 9455-9:2021
Current
Current
The latest, up-to-date edition.
Soft soldering fluxes - Test methods - Part 9: Determination of ammonia content
Published date
18-02-2021
The principle of the method specified is to distil a prepared flux solution with sodium hydroxide to expel the ammonia present in the flux, to pass the resulting distillate into a standard sulfuric acid solution, to titrate the excess acid with sodium hydroxide solution and to calculate the ammonia content of the flux.
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