BS 750 2012 地下消防栓和表面箱框架及盖子的规格说明 Specification for underground fire hydrants and surface box frames and covers.pdf

BS 750:2012
BSIStandardsPublication
Specification for underground fire hydrants and surface box frames and covers
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BS750:2012 BRITISHSTANDARD
Publishing and copyrightinformation The BSl copyright notice displayed in this document indicates when the document was last issued. @ The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN 978 0 580 74714 4 ICS 13.220.10 The following BSl references relate to the work on this standard: Committee reference FSH/17/8 Draft for ment 11/ DC Publication history First published August 1937 First revision, January 1950 Second revision,August 1964 Third revision, February 1977 Fourth revision, January 1984 Fifth revision, September 2006 Sixthrevision(present),September2012 Amendmentsissued sincepublication Date Text affected
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BRITISHSTANDARD BS750:2012
Contents Forewordii Introduction1 1Scope1 2Normative references 3Terms and definitions2 4Fire hydrants 3 5Outlets 6 6Stem drive7 7Draining system7 8Coating 9Maintenance of water purity (potable water systems only)9 10Typerequirements9 11Fire hydrant assembly-resistance to internal pressure of the shell and of all pressure containing ponents and resistance of the obturator to differential pressure11 12Hydrostatic test certificate11 13Marking and additional data11 14Surface boxframes and covers11 15Marking15 16Typerequirements 15 17Productionrequirements16 18Test certificate16 Annexes AnnexA(normative) Type tests for strength, security and endurance17 Annex B(normative) Type hydrostatic tests for screwed outlets 19 AnnexC(normative)Airrelease test20 Annex D (normative)Obturatorimpact resistance test 21 Annex E(normative) Hydrant box cover opening procedure21 AnnexF(normative) Information to be supplied by the purchaser22 Annex G (normative) Type and prod...