标准编号：ISO 9455-16:2019
中文名称：软钎焊剂 试验方法 第16部分：钎剂功效试验、湿平衡法
英文名称：Soft soldering fluxes — Test methods — Part 16: Flux efficacy test, wetting balance method
发布日期：2019-09
标准范围
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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