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NOTE 1 In order to satisfy the provisions of 4.1.3.3P(3) these values for cover should be associated with particular concrete qualities, to be determined from Table 3 of ENV 206 and its National Annex.

NOTE 2 A reduction of 5 mm may be made where concrete of strength class C40/50 and above is used for reinforced concrete in exposure classes 2a to 5b, and for prestressed concrete in exposure classes 2a to 5b. For slab elements, a further reduction of 5 mm may be made for exposure classes 2 to 5.

NOTE 3 For exposure class 5c, a protective barrier should be provided to prevent direct contact with aggressive media. a The nominal values for cover have been obtained from the minimum values by allowing for a negative construction tolerance of 5 mm.

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