xmlns:atom="http://www.w3.org/2005/Atom"
3.2. Intrinsic features:
triangular shape
black pictogram on a yellow background with black edging (the yellow part to take up at least 50% of the area of the sign).
In the absence of a specific sign for high temperature
Pictogram laid down in Council Directive 90/679/EEC of 26 November 1990 on the protection of workers from the risks related to exposure to biological agents at work (Seventh individual Directive within the meaning of Article 16(1) of Directive 89/391/EEC) O.J. No. L374, 31.12.1990, p. 1
The background to this sign may exceptionally be amber if justified in order to differentiate it from a similar road safety sign