IS 15839 : 2024/ISO 13520 : 2023 Determination of Ferrite Content in Austenitic Stainless Steel Castings
NATIONAL FOREWORD
This Indian Standard (Second Revision) which is identical to ISO 13520 : 2023 'Determination of ferrite content in austenitic stainless steel castings' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Metallography and Heat-Treatment Sectional Committee and approval of the Metallurgical Engineering Division Council.
This standard was first published in 2009 and subsequently revised in 2021. The second revision of this standard has been undertaken to align it with the latest version of ISO 13520 : 2023 under dual numbering system to harmonize it with the latest developments that have taken place at international level.
The changes compared to the previous edition are as follows:
a) ASTM A799 and BNIF 345 were moved to the bibliography as they are not cited normatively; and
b) Editorial revision.
The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical with those used in Indian Standard. Attention is especially drawn to the following:
a) Wherever the words `International Standard' appear referring to this standard, it should be read as `Indian Standard'; and
b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.