Reference number
ISO 9455-16:2019
© ISO 2024
International Standard
ISO 9455-16:2019
Soft soldering fluxes — Test methods — Part 16: Flux efficacy test, wetting balance method
Edition 3
2019-09
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Published (Edition 3, 2019)

ISO 9455-16:2019

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CHF 129
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Abstract

This document 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 form classified in ISO 9454‑1.

NOTE It is hoped that future developments 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.

General information

  • Status
     : Published
    Publication date
     : 2019-09
    Stage
    : International Standard under systematic review [90.20]
  • Edition
     : 3
    Number of pages
     : 19
  • Technical Committee :
    ISO/TC 44/SC 12
    ICS :
    25.160.50 
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