Preliminary and market control
Product control ensures that a product conforms with requirements. Control is carried out as preliminary and market control.
Preliminary control refers to the procedures that the manufacturer or supplier must be carry out before putting the product on the market. The Directive which concerns the product stipulates whether qualified external assistance is required to demonstrate compliance.
The set of control which affect the product once it is on the market is called market control. Competent authorities use market control to ensure that preliminary control is carried out appropriately. If the product does not conform to standards, it must be taken of the market or be made to conform.
