Norm

A standard is a technical specification approved by a recognized body.
 Unlike a directive, its application is not compulsory.
We speak of a harmonized standard when it is drawn up by a European standardization body under a mandate from the European Commission. The Commission then publishes it in the Official Journal of the European Union and it follows the directive based on which it has been drawn up.
In lifting, HUCHEZ electric winches are designed and manufactured in accordance with the NF 14492-1 standard and HUCHEZ manual winches to the NF 13157 standard.