M00000845
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ISO 9455-16 2nd Edition, April 15, 2013 Soft soldering fluxes - Test methods - Part 16: Flux efficacy test, wetting balance method
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 9455 specifies a method for the assessment of
the efficacy of a soft soldering flux, known as the wetting balance
method. It gives a qualitative assessment of the comparative
efficacy of two fluxes (for example, a standard and a test flux),
based on their capacity to promote wetting of a metal surface by
liquid solder. The method is applicable to all flux types in liquid
for classified in ISO 9454-1.
NOTE It is hoped that future development s using improved
techniques for obtaining a reproducible range of test surfaces will
enable this method for assessing flux efficacy to be quantitative.
For this reason, several alternative procedures for preparing the
surface of the test piece are included in the present method.