National foreword

This British Standard is the official English language version of EN 12811‑1:2003. It supersedes BS 5973:1993 which is withdrawn.

The UK participation in its preparation was entrusted by Technical Committee B/514, Access and support equipment, to Subcommittee B/514/21, Access and working scaffolds, 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 the UK interests informed;
— monitor related international and European developments and promulgate them in the UK.

A list of organizations represented on this subcommittee can be obtained on request to its secretary.

It is anticipated that CEN will issue a corrigendum to correct the following items:

a) in the key of Figure 5, line 3, “see Table 4” will read as “see Table 3”;
b) in Equation 10 the value “2,4M_B,d” will read as “2,0M_B,d”;
c) in Table C.1 the bending moment M_B,k in kN·m for class B, the value “2,4” will read as “1,4”;
d) in the title of Figure C.2, “and C” will be deleted.

EN 12811‑1:2003 is published with three national annexes. National annex NA gives general guidance on the use of this standard. National annex NB gives detailed information on the differences between this standard and BS 5973 (withdrawn). National annex NC discusses the aspects of structural design by limit state covered by this standard, but not considered in BS 5973 (withdrawn).

Cross-references

The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 56, an inside back cover and a back cover.

The BSI copyright notice displayed in this document indicates when the document was last issued.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 June 2004

Amendments issued since publication

Amd. No.	Date	Comments

BS EN 12811-1:2003

Temporary works equipment - Scaffolds. Performance requirements and general design

Current

Published:

16 Jun 2004