NF EN ISO 9455-16

NF EN ISO 9455-16

October 2019
Standard Current

Soft soldering fluxes - Test methods - Part 16 : flux efficacy test, wetting balance method

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.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2019

Number of pages

26 p.

Reference

NF EN ISO 9455-16

ICS Codes

25.160.50   Brazing and soldering

Classification index

A81-365-16

Print number

1

International kinship

ISO 9455-16:2019

European kinship

EN ISO 9455-16:2019
Sumary
Soft soldering fluxes - Test methods - Part 16 : flux efficacy test, wetting balance method

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.

Replaced standards (1)
NF EN ISO 9455-16
June 2013
Standard Cancelled
Soft soldering fluxes - Test methods - Part 16 : flux efficacy test, wetting balance method

<p>ISO 9455-16:2013 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.</p>

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Symboles
  • 5 Principe
  • 6 Réactifs
  • 7 Appareillage
  • 8 Pièces d'essai
  • 9 Mode opératoire
  • 10 Valeur de référence déterminée à l'aide d'un flux normalisé
  • 11 Présentation des résultats
  • 12 Calcul et expression des résultats
  • 13 Rapport d'essai
  • Annexe A Méthode pour la préparation de flux liquides normalisés à base de colophane, ayant une teneur de 25 pour cent (en masse) de matières non volatiles
  • Annexe B Méthode pour la production de pièces d'essai ayant une surface à contamination contrôlée pour l'essai à la balance de mouillage (méthode de sulfuration artificielle)
  • Bibliographie
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