DS DS/EN ISO 9455-3
DS DSEN SO 9455-3 1996-MAR-28 Soft solderng fluxes - Tests methods - Part 3 Determnaton of acd value potentometrc and vsual ttraton methods
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This part of ISO 9455 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.