This European Standard specifies the requirements for the four types of exfoliated vermiculite products Vermiculite Aggregate (EVA), Coated Vermiculite (EVC), Hydrophobic Vermiculite (EVH) and Premixed Vermiculite (EVM), containing less than 1 % organic material as defined by annex D for in-situ insulation of roofs, ceilings, walls and floors. This Part 1 of this standard is a specification for the insulation products before installation. This Part 1 of this standard describes the product characteristics and includes procedures for testing, evalua-tion of conformity, marking and labelling. 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 regulations or non-conflicting standards. This European Standard does not cover factory made insulation products of formed shapes and boards made with exfoliated vermiculite 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.