EN ISO 9455-16:2019
软钎焊剂的试验方法.第16部分:助熔剂功效试验.湿平衡法

Soft soldering fluxes - Test methods - Part 16: Flux efficacy test, wetting balance method (ISO 9455-16:2019)

作废

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标准号

EN ISO 9455-16:2019

发布

2019年

发布单位

欧洲标准化委员会

当前最新

EN ISO 9455-16:2019

 

 

适用范围

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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