BS ISO BRITISH STANDARD AEROSPACE SERIES 15859-3:2004 Space systems Fluid characteristics. sampling and test methods - Part 3: Nitrogen ICS 49.140 BSi NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTL British Standards BS IS0 15859-3:2004 National foreword This British Standard reproduces verbatim IS0 15859-3:2004 and implements it astheUKnationalstandard. The UK participation in its preparation was entrusted by Technical Committee ACE/68, Space systems and operations, to Subcommittee ACE/68/-/3, 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. Cross-references The British Standards which implement international 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 ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages i to iv, pages 1 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication This British Standard was published under the authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 16August 2004 C BSI 16 August 2004 ISBN 0 580 44267 5 BS IS0 15859-3:2004 INTERNATIONAL ISO STANDARD 15859-3 First edition 2004-06-01 Space systems Fluid characteristics, sampling and test methods - Part 3: Nitrogen d'essaides fluides Partie 3: Azote Reference number ISO 15859-3:2004(E) BS ISO 15859-3:2004 ii BS ISO 15859-3:2004 Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with isO, also take part in the work. isO collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 15859-3 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee Sc 14, Space systems and operations. sampling and test methods: Part 1: Oxygen Part 2: Hydrogen Part 3: Nitrogen Part 4: Helium Part 5: Nitrogen tetroxide propellants Part 6: Monomethylhydrazine propellant Part 7: Hydrazine propellant Part 8: Kerosine propellant Part 9: Argon Part 10: Water Part 11: Ammonia Part 12: Carbon dioxide Part 13: Breathing air ili BS IS0 15859-3:2004 Introduction interfaces, from the fluid production plant to the delivery to the launch vehicle or spacecraft. The purpose of IsO 15859 is to establish uniform requirements for the components, sampling and test methods of fluids used in the servicing of launch vehicles, spacecraft and ground support equipment. The fluid composition limits sampling and test methods are acceptab