ICS 13.020.40; 27.120.30                         CHD 30

New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 18557 : 2017 ‘Characterisation principles for soils, buildings and infrastructures contaminated by radionuclides for remediation purposes’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Nuclear Energy for Peaceful Applications Sectional Committee and approval of the Chemical Division Council.

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/Document’ 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.