Due to the potential disastrous consequences if the wrong equipment is used, all equipment shall be clearly labelled with information supporting the safe use of the equipment.

NOTE   Annex C gives information on the marking of explosion-protected equipment certified under different product certification schemes.

Marking shall be

NOTE  White spirit is also known as mineral spirits, mineral turpentine,turpentine substitute, petroleum spirits, and solvent naphtha (petroleum), and composed of a mixture of aliphatic and alicyclic C7 to C12 hydrocarbons with a maximum content of 25 %, by mass, of c7 to c12 aromatic hydrocarbons. This will not affect the marking.