New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 18651-1 : 2011 ‘Building construction machinery and equipment - Internal vibrators for concrete - Part 1: Terminology and commercial specifications’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Construction Plant and Machinery Sectional Committee and approval of the Mechanical Engineering Divisional 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 Standard. 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.