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ISO 9455-3:2019

Soft soldering fluxes — Test methods — Part 3: Determination of acid value, potentiometric and visual titration methods

Sep 18, 2019

General information

90.93     Aug 6, 2025

ISO

ISO/TC 44/SC 12

International Standard

25.160.50  

English   French  

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Scope

This document specifies two methods for the determination of the acid value of a flux of types 1 and 2 only, as defined in ISO 9454‑1.
Method A is a potentiometric titration method and is to be considered as the reference method.
Method B is an alternative, visual end‑point, titration method.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9455-3:1992

NOW

PUBLISHED
ISO 9455-3:2019
90.93 Standard confirmed
Aug 6, 2025