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prEN ISO 9455-9

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

General information

Draft
Base Documents
ISO/FDIS 9455-9; prEN ISO 9455-9
Directives or regulations
None

Standard history

Status
Date
Type
Name
Main
prEN ISO 9455-9
01.01.2000
Main
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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