bsi. ...making excellence a habit Inspiring trust foramore resilient world 需要更多标准请联系 wechat: wpwyq310 BSIS0 22904:2020 BSI Standards Publication Additions for concrete 详询VX:wpwyq310 文字不会影响您的编辑 bsi. BSISO22904:2020 BRITISH STANDARD National foreword This British Standard is theUK implementation of IS022904:2020 The UK participation in its preparation was entrusted to Technical CommitteeB/517,Concrete. A list oforganizationsrepresented on this committee can beobtained on request to its committee manager. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correct application. @TheBritishStandards Institution2020 Published byBSIStandards Limited2020 ISBN9780539011869 ICS91.100.30 CompliancewithaBritish Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on31 July 2020. Amendments/corrigenda issued sincepublication Date Text affected 详询VX:wpwyq310 文字不会影响您的编辑