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BS ISO 17081-2004
Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique Methode de mesure de la permeation de l'hydrogene et determination de l'absorption d'hydrogene et de son transport dans les metaux a l'aide d'une technique electrochimique CORR 15698:October 28,2005
适用范围：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.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.This International Standard gives requirements for the preparation of specimens, control and monitoring of the environmental variables, test procedures and analysis of results.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.
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