CSN EN ISO 9455-3

CSN EN ISO 9455-3 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.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.