ISO 17081:2004 Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique (Second Edition)
1.1 This International Standard specifies a laboratory method for the measurement of hydrogen permeation
and for the determination of hydrogen atom uptake and transport in metals, using an electrochemical technique.
The term “metal” as used in this International Standard includes alloys.
1.2 This International Standard describes a method for evaluating hydrogen uptake in metals, based on
measurement of steady-state hydrogen flux. It also describes a method for determining effective diffusivity of
hydrogen atoms in a metal and for distinguishing reversible and irreversible trapping.
1.3 This International Standard gives requirements for the preparation of specimens, control and monitoring of
the environmental variables, test procedures and analysis of results.
1.4 This International Standard may be applied, in principle, to all metals for which hydrogen permeation is
measurable and the method can be used to rank the relative aggressivity of different environments in terms of
the hydrogen uptake of the exposed metal.
ISO 17081:2004 Referenced Document
ISO 17475 Corrosion of metals and alloys - Electrochemical test methods - Guidelines for conducting potentiostatic and potentiodynamic polarization measurements; Technical Corrigendum 1*, 2006-05-01 Update
ISO 17081:2004 history
2014ISO 17081:2014 Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique
2004ISO 17081:2004 Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique (Second Edition)