IS 3848 : 2024/ISO 642 : 1999 Steel - Hardenability Test by End Quenching (Jominy Test)
NATIONAL FOREWORD
This Indian Standard (Second Revision) is identical to ISO 642 : 1999 'Steel - Hardenability test by end quenching (Jominy test)' 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 1966 and subsequently revised in 1981. This revision has been undertaken to align it with ISO 642 : 1999 under dual numbering system to harmonize it with the latest developments that have taken place at international level.
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.