NATIONAL FOREWORD

This Indian Standard which is identical with ISO 12509 : 2004 ‘Earth-moving machinery — Lighting, signaling and marking lights, and reflex- reflector devices’ was adopted by the Bureau of Indian Standards on the recommendation of the Material Handling Systems and Equipment Sectional Committee and approval of the Mechanical Engineering Division Council.

Earth moving machinery are designed to function in the wide variety of operations and worksites. Their size, mass, speed, combinations and equipment also greatly vary. Therefore the combination of lightning, signaling and marking lights, and reflex-reflector devices will differ.

This Indian Standard provides information needed for the selection of lightning, signaling and marking lights, and reflex-reflector devices based on machine application and speed.

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain 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.