BS_EN_12952-4-2000

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Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Thu Aug 23 10:13:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSI

BRITISH STANDARD

Water-tube boilers and auxiliary installations Ð Part 4: In-service boiler life expectancy calculations

The European Standard EN 12952-4:2000 has the status of a British Standard

ICS 27.060.30

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

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BS EN 12952-4:2000

Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Thu Aug 23 10:13:58 GMT+00:00 2007, Uncontrolled Copy, (c) BSI

BS EN 12952-4:2000

National foreword This British Standard is the official English language version of EN 12952-4:2000. It partially supersedes BS 1113:1999 which will be withdrawn when all the other parts of EN 12952 are published. The UK participation in its preparation was entrusted to Technical Committee PVE/2, Water-tube boilers, which has the responsibility to: Ð aid enquirers to understand the text; Ð present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; Ð 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. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ªInternational Standards Correspondence Indexº, or by using the ªFindº facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their 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 18, 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, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 2000  BSI 05-2000

ISBN 0 580 34872 5

Amendments issued since publication Amd. No.

Date

Comments

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It can be proved that the relative extremes in the first part of the RSE with the increasing amplitude will never be found to associate with a load cycle. Only the extremes in the second part, with the decreasing amplitude inclusive of the highest maximum and lowest minimum in the middle of the RSE, can be a part of further load cycle.

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