Chose the right class of ladder

Quite often, I see domestic ladders used in industrial environments, for which they are totally unsuited.  When choosing a ladder, look at the label, as shown above.

Class 1 Industrial -  This is the type best suited for industrial use.
Class EN131 -         This is suitable for light industrial use and heavy domestic DIY work.
Class III Domestic - This is exactly all that it should be used for. It is not substantial enough
                                 for any industrial use.