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ISO 9455-9:1993

Soft soldering fluxes -- Test methods -- Part 9: Determination of ammonia content

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Kehtetu alates 19.10.2020
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Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
19.10.2020
Põhitekst
15.04.1993
Põhitekst
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. Applies to fluxes of class 3.1.1 only, as defined in ISO 9454-1.
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