British Standards for construction products

Nearly all British Standards for construction products are the British versions of the harmonised European standards (ENs) used for CE marking. The BSI numbering policy is to adopt the CEN numbering, prefaced with BS e.g. BS EN 1971. Some British Standards are the British versions of nonharmonised European standards; these also adopt the CEN numbering, prefaced with BS. These do not contain an Annex ZA, so CE marking cannot be affixed to products made to these standards. Some British Standards for products not covered by a European standard will continue to exist. Where a construction product has been made and assessed in accordance with one or more British Standard described in the two preceeding paragraphs, may show whether or not the product is suitable for its intended use.