Reaffirmed 2022

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 24234 : 2015 ‘Dentistry — Dental amalgam’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Dentistry Sectional Committee and approval of the Medical Equipment and Hospital Planning Division Council.

This standard was first published in 2012 and was identical with ISO 24234 : 2004 ‘Dentistry — Mercury and alloys for dental amalgam’. The first revision of this standard has been undertaken to align it with the latest version of ISO 2434 : 2015.

Dental amalgam alloy and mercury are the essential and only components of dental amalgam restorative material. This standard combines the requirements and the test methods for the alloy with those for the mercury in a single standard.

To enhance the safety of dentists and support staff, it would have been preferred to limit the scope solely to the use of pre-dosed capsules of alloy and mercury. It is, however, recognized and accepted that both amalgam alloy and mercury are supplied in bulk form in some parts of the world where, for economic reasons, this is necessary for the provision of dental treatment. Therefore, requirements for these products are included in this standard.

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 to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

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.