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prEN ISO 9455-9

Soft soldering fluxes - Test methods - Part 9: Determination of ammonia content (ISO/FDIS 9455-9:2020)

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Alusdokumendid
ISO/FDIS 9455-9; prEN ISO 9455-9
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puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
Põhitekst
01.01.2000
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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