Annex 3 of ATEX 99/92/EC directive

ANNEX III

Warning sign for places where explosive atmospheres may occur, pursuant to Article 7(3):

Place where explosive atmospheres may occur

Distinctive features:

- triangular shape,

- black letters on a yellow background with black edging (the yellow part to take up at least 50 % of the area of the sign).

Member States may add other explanatory data if they wish.