This European Standard specifies the requirements for blown loose-fill mineral wool products for in-situ installation in lofts, masonry cavity walls and frame constructions.This European standard is a specification for the insulation products before installation. It describes the product characteristics and includes procedures for testing, marking and labelling.This document 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 regulations or non-conflicting standards.NOTETo avoid water penetration in masonry walls special tests adjusted to local climate might be needed.This document does not cover factory made mineral wool (MW) insulation products or in-situ products intended to be used for the insulation of building equipment and industrial installations.Products with a declared thermal resistance lower than 0,25 m².K/W or a declared thermal conductivity greater than 0,060 Wm/(m.K) at 10 °C are not covered by this document.This document does not cover products intended for airborne sound insulation and for acoustic absorption applications.