1、BS ISO 19826:2017Space systems Programmemanagement Managementof product characteristicsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 19826:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 19826:2017.The UK participa
2、tion in its preparation was entrusted to Technical Committee ACE/68, Space systems and operations.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respo
3、nsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 87187 0 ICS 49.140Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards
4、 Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 19826:2017 ISO 2017Space systems Programme management Management of product characteristicsSystmes spatiaux Management de programme Management des caractristiques des prod
5、uitsINTERNATIONAL STANDARDISO19826First edition2017-02Reference numberISO 19826:2017(E)BS ISO 19826:2017ISO 19826:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be r
6、eproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the reque
7、ster.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 19826:2017ISO 19826:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 General requirements .
8、 25 Management process . 26 Identification and classification . 36.1 General . 36.2 Product characteristic identification . 36.2.1 General . 36.2.2 Requirements analysis 36.2.3 Design analysis 46.2.4 Selection of units of inspection . 46.3 Product characteristics classification 57 Management impleme
9、ntation 57.1 Establishment of control plans to critical and major characteristics 57.2 Annotation 67.2.1 General 67.2.2 Product characteristic classification codes . 67.2.3 Annotation principles 77.3 Process control and data management 78 Management close-out . 8Annex A (informative) Examples of pro
10、duct characteristics annotation . 9Bibliography .13 ISO 2017 All rights reserved iiiContents PageBS ISO 19826:2017ISO 19826:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Intern
11、ational Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with
12、 ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives,
13、Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of
14、 the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declaration
15、s received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about
16、 ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 14, Space systems and operations.iv ISO 2017 All r
17、ights reservedBS ISO 19826:2017ISO 19826:2017(E)IntroductionDuring the development of space products, it is important to identify critical and major characteristics, and to annotate them in drawings and technical specifications. In design, proper product characteristic classification helps to improv
18、e the design quality. In production, proper product characteristic classification helps manufacturing activities successfully implement design requirements, and also helps producers control the characteristics which are critical to keeping the stability and traceability of product quality. In inspec
19、tion, characteristic classification facilitates effective allocation of inspection effort. Meanwhile, it ensures realization of critical and major characteristics, quality of end product and the preset mission by performing management requirements through all of the development stages.This document
20、mainly defines the critical, major and minor characteristics of space products, describes the whole management process of product characteristics and specifies related management requirements.This document focuses on management requirements for identification and control of space product characteris
21、tics, especially for critical and major characteristics, which are closely connected with end product quality and mission success, and enhances cost-effective applications in the life cycle of a space product.In addition, this document will help to clarify and enhance current practices to improve qu
22、ality assurance, and promote international cooperation. ISO 2017 All rights reserved vBS ISO 19826:2017BS ISO 19826:2017Space systems Programme management Management of product characteristics1 ScopeThis document defines management requirements of product characteristics, including their classificat
23、ion, in order to highlight those areas of the product to which specific attention, control or inspections are applied.This document is applicable to direct implementation of space product characteristic management, especially for mechanical parts and fluidic equipment.2 Normative referencesThe follo
24、wing documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 270
25、25, Space systems Programme management Quality assurance requirements3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 9000 and ISO 10795 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following a
26、ddresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp3.1critical characteristickind of characteristic whose fault would cause failure of the whole system or major subsystem to perform a required mission or
27、 create serious harm to the safety of humans3.2end productproduct in the assembled and completed state at which acceptance will take place3.3inspection unitunit on which characteristic inspection is performed3.4major characteristickind of characteristic whose fault would cause the end product fails
28、to perform a required missionNote 1 to entry: It would not cause failure of the whole system or major subsystems which perform a required mission.3.5minor characteristickind of characteristic significant to product quality, but whose fault could not affect realization of mission performance of produ
29、ctINTERNATIONAL STANDARD ISO 19826:2017(E) ISO 2017 All rights reserved 1BS ISO 19826:2017ISO 19826:2017(E)3.6product characteristicdistinguishing feature of a productNote 1 to entry: Product characteristics can be classified variously, including physical, sensory, functional and so on. In this docu
30、ment, according to the severity of consequences caused by characteristic faults and non-conformance with design requirements, product characteristics are mainly divided into three categories: critical, major and minor.4 General requirements4.1 In support of product quality and mission functions, man
31、agement of product characteristic shall be implemented. As part of management process of product characteristics, the suppliers shall identify and classify product characteristics which shall conform to the requirements submitted by their customer, and implement control measures according to classif
32、ication in order to highlight those areas of the product to which specific attention, control or inspections shall be applied.4.2 The suppliers shall especially identify critical and major product characteristics during design phase, focus on their control during the process generating critical and
33、major characteristics, and inspect their conformance with the design requirements.4.3 According to the severity of the consequences caused by failure and non-conformance with the design requirements, product characteristics are classified into critical characteristics, major characteristics and mino
34、r characteristics. The suppliers shall strengthen control of critical and major characteristics with proper measures during the production and inspection process.4.4 Product designers are mainly responsible of product characteristic identification and classification, and product assurance and proces
35、s personnel participate. Processes, manufacturing, inspection and other factors shall be taken into consideration during product characteristic identification and classification. The analysis procedure and results of identification and classification shall be documented and reviewed. If necessary, t
36、he customer shall take part in the review.4.5 Identification and classification of product characteristics are implemented over the project phases. The suppliers shall begin to identify and classify product characteristics during the preliminary definition phase in which results of product character
37、istics analysis including product characteristic category and their control measures shall be preliminarily defined. The suppliers shall continue to make further identification of critical and major characteristics referring to product design and verification, and to update the results of classifica
38、tion during the detail definition phase in which characteristic categories are determined finally.4.6 Product characteristic management should be supervised by the department with responsibility for quality assurance/configuration and data management.5 Management processManagement of product charact
39、eristic generally includes product characteristic identification and classification, management implementation and management close-out. Figure 1 gives the management process of product characteristics.2 ISO 2017 All rights reservedBS ISO 19826:2017ISO 19826:2017(E)Figure 1 Management process of pro
40、duct characteristics6 Identification and classification6.1 GeneralProduct characteristics identification and classification is a part of design activity. Integrated engineering, dependability, quality assurance disciplines, product characteristics identification and classification is a complicated p
41、rocess with the effort of comprehensive analysis. Engineering experience is needed in accomplishment of identifying and classifying product characteristics.History data, lessons learned and customer requirements which contain technical requirements, acceptance requirements and project management req
42、uirements are the inputs of product characteristics identification and classification. Identified critical, major and minor characteristics are the outputs of product characteristics identification and classification.6.2 Product characteristic identification6.2.1 General Product characteristics iden
43、tification which includes activities of requirements analysis, design analysis and selection of units of inspection is the basis for product characteristics classification. Through product characteristic identification, the characteristics related to product quality and acceptance of product can be
44、identified, and levels of inspection can be determined.6.2.2 Requirements analysisRequirements analysis is a systematic procedure for determining the demands made on product by its intended mission. Requirements analysis shall be performed by the analysis of mission functions of ISO 2017 All rights
45、reserved 3BS ISO 19826:2017ISO 19826:2017(E)hardware elements, duration of required performance, environmental limits of the mission, availability of maintenance and effects of failures on the mission. Contents of each analysis are generally as follows.a) Functions analysis: all functions of the pro
46、duct shall perform during its mission.b) Duration of performance analysis: the duration of performance required of each function.When the performance times are random variables, their maximum values should be used.c) Environmental limits analysis: environmental extremes applicable to the mission.d)
47、Availability of maintenance analysis: if the product can be maintained in use, consider what maintenance is feasible in the worst case of conditions.e) Effects of failures analysis: whether partial or complete failure of product can be accepted, and the effects of failure to the mission.6.2.3 Design
48、 analysisDesign analysis is a procedure for identifying and understanding in detail the means by which a product is able to respond to the requirements of its mission. Complete design analysis is required for a new design. Design analysis of existing design is to evaluate history data of similar ite
49、ms. Design analysis is to analyse the design features of hardware elements relative to the requirements of coordination, life, interchangeability, function and safety, and to study material properties, fabrication, assembly and testing processes, tolerances, design life, failure modes, effects of failure on performance and safety. Contents of design analysis are generally as follows:a) material properties which are significant in determining the quality;b) means of the item to be processed, fabricated, assembled and tested;c) inte
