The document specifies four methods for determination of the susceptibility of nickel-based alloys to intergranular corrosion.
DIN EN ISO 9400:1995 history
1995DIN EN ISO 9400:1995-12 Nickel-based alloys - Determination of resistance to intergranular corrosion (ISO 9400:1990); German version EN ISO 9400:1995
1995DIN EN ISO 9400:1995 Nickel-based alloys - Determination of resistance to intergranular corrosion (ISO 9400:1990); German version EN ISO 9400:1995