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ISO 9455-9:1993

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

Published By Publication Date Number of Pages
ISO 1993-04 8
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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.

ISO 9455-9:1993
$13.00