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Homepage>BS Standards>25 MANUFACTURING ENGINEERING>25.160 Welding, brazing and soldering>25.160.50 Brazing and soldering>BS EN ISO 9455-16:2019 Soft soldering fluxes. Test methods Flux efficacy test, wetting balance method
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immediate downloadReleased: 2019-11-06
BS EN ISO 9455-16:2019 Soft soldering fluxes. Test methods Flux efficacy test, wetting balance method

BS EN ISO 9455-16:2019

Soft soldering fluxes. Test methods Flux efficacy test, wetting balance method

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Standard number:BS EN ISO 9455-16:2019
Pages:26
Released:2019-11-06
ISBN:978 0 539 03073 0
Status:Standard
DESCRIPTION

BS EN ISO 9455-16:2019


This standard BS EN ISO 9455-16:2019 Soft soldering fluxes. Test methods is classified in these ICS categories:
  • 25.160.50 Brazing and soldering

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.