A standard defines the conditions in which an operation is performed, an object produced, a product manufactured or a service delivered. Standardization is as a reference document reflecting the State of the Art, technique and know-how.
The standard is a link between the various economic players (used for calls for tenders, orders, regulatory requirements...)
There are international (ISO), European (EN) and French (NF) standards.
A PVC wall covering is a decoration product that complies with a European specification standard :
Product Standard NF EN 259 Heavy duty wall coverings
A covering complying with this standard :