Nationalforeword
This British Standard is the official English language version of
EN 1504-3:2005.
EN 1504-3 isa candidate “harmonized”European standard and fully takes into
account the requirements of the European Commission mandate M/128,
Products related to concrete, mortar and grout, given under the EU
Construction Products Directive(89/106/EEC),andis intended to lead to CE
marking. The date of applicability of EN 1504-3 as a harmonized European
Standard, i.e. the date after which this standard may be used for CE marking
purposes, is subject to an announcement in the Official Journal ofthe
European Communities.
The Commission in consultation with Member States has agreed a transition
period for the co-existence of harmonized European Standards and their
corresponding national standard(s). It is intended that this period will
comprise a period, usually nine months, after the date of the European
Standard, during which any required changes to national regulations are to be
made, followed by a further period, usually of 12 months, for the
implementation of CE marking. At the end of this co-existence period, the
national standards(s) will be withdrawn.
EN 1504-3 is the subject of transitional arrangements agreed under the
Commission mandate. In the UK, there are no corresponding national
standards of national origin.
The UK participation in preparation of EN 1504-3:2005 was entrusted by
Technical Committee B/517, Concrete, to Subcommittee B/517/8, Protection
and repair of concrete structures, which has the responsibility to:
aid enquirers to understand the text;
present to the responsible international/European committee any
enquiries on the interpretation,or proposals for change,and keep UK
interests informed;
monitor related international and European developments and
promulgate them in the UK.
A list of organizations represented on this committee can be obtained on
request to its secretary.
Summary of pages
This document comprises a front cover, an inside front cover, page i, a blank
page, the EN title page, pages 2 to 25 and a back cover.
The BSI copyright notice displayed in this document indicates when the
document was last issued.

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