This European Standard specifies the requirements for loose-fill expanded clay lightweight aggregate (LWA) products installed in roofs, ceilings, floors and ground floors. This Part 2 is a specification for the installed product. Part 2 of this European Standard describes, when taken together with Part 1, the product characteristics that are linked to the essential requirements of the EU Construction Products Directive. Part 2 also specifies the checks and tests to be used for the declarations made by the installer of the product. Part 2 of this European Standard does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The levels required for a given application are to be found in national regulations or non conflicting standards. This European Standard does not cover factory made expanded clay lightweight aggregate products or in-situ products intended to be used for the insulation of building equipment and industrial installations. This European Standard does not specify performance requirements for airborne sound insulation and for acoustic absorption applications.