It is essential that EPS products with a reaction to fire performance better than Euroclass F be manufactured from raw materials with a chemical composition, which is under the control of the raw material producer.
This Technical Report specifies the conditions allowing reduction of the FPC frequency for testing the reaction to fire of specimens made from flame retardant EPS raw material. The preconditions are that products are manufactured solely from a specified, certified raw material, within defined density limits, and produced in the way specified by the raw material supplier.
The frequency of testing the final product can be reduced in accordance with EN 13163:2008, Annex B,
Table B.2 footnote to table h. It is essential that the reaction to fire performance of the raw material be labelled according to 9.2 in the certificate from an approved body (see EN 13172:2008, 5.3.3 and Annex A).
The certification of the raw material relates only to products for which the reaction to fire Euroclass E according to EN 13501-1 is being claimed. The manufacturer of the EPS boards / products continues to be responsible for the FPC of the EPS boards / products.
This Technical Report is in accordance with the general rules of EN 13172.

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This European Standard specifies the requirements for factory made products of expanded polystyrene which are used for frost insulation of roads, railways, trafficked areas, light weight fill for reduction of horizontal and vertical earth pressure and other civil engineering applications.
The products are manufactured in the form of boards or blocks. The standard also covers specially cut shaped boards or blocks.
The standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling.
The standard does not specify the required class or level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The classes and levels required for a given application are to be found in regulations or non-conflicting standards.
For applications where thermal resistance is required, products with a declared thermal resistance lower than 0,25 m²K/W or a declared thermal conductivity greater than 0,060 W/(m K) are not covered by this standard. This standard does not cover in situ insulation products and products intended to be used for the insulation of buildings, of building equipment and industrial installations or products intended for acoustic insulation.

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This European Standard specifies the requirements for factory made products of expanded polystyrene, with or without facings or coatings which are used for the thermal insulation of buildings. The products are manufactured in the form of boards or rolls or other preformed ware. The standard describes product characteristics and includes procedures for testing, marking and labelling. Products covered by this standard are also used in prefabricated thermal insulation systems and composite panels; the structural performance of systems incorporating these products is not covered.

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