SIST EN 4617:2009

Aerospace series - Recommended practices for standardising company standards

This document is a guide describing the recommended practices in specifying industrial requirements in the form of recognised standards (national, European, international), in preference to company standards.
It emphasises the economic and industrial value of following and encouraging such practices.
It is based on what is frequently observed and considered by primes and manufacturers as constituting best practices to the benefit of  all involved in the life cycle of a product, from the design stage until its withdrawal from service.....

Luft- und Raumfahrt - Harmonisierung von Werknormen

Série aérospatiale - Normaliser les standards d'entreprise

Aeronavtika - Priporočene prakse za usklajevanje standardov v podjetjih

General Information

• Status: Published
• Publication Date: 23-Jun-2009
• ICS: 01.120 - Standardization. General rules
• ICS: 49.020 - Aircraft and space vehicles in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-May-2009
• Due Date: 03-Aug-2009
• Completion Date: 24-Jun-2009
• Ref Project: EN 4617:2006 - Aerospace series - Recommended practices for standardising company standards

Overview

EN 4617:2006 - "Aerospace series - Recommended practices for standardising company standards" (CEN) is a guidance standard that promotes using recognised public standards (national, European, international) in preference to proprietary company standards. It explains the rationale, industrial benefits and a practical, step‑wise approach for rationalising and harmonising company standards across the aerospace product life cycle - from design through withdrawal from service.

Key topics

• Purpose & scope: Guidance to specification writers, designers and managers to increase use of public standards and reduce company‑specific requirements.
• Industrial challenges: Describes the high volume and diversity of company standards, the estimated imbalance between company vs public standard usage, and the cost/complexity impact on primes and manufacturers.
• Favourable conditions: Importance of a formal standardisation policy and a maintained Standard Reference System (SRS) or standards handbook to guide procurement and design choices.
• Rationalisation approach: Methodology for analysing existing company standards, mapping them to applicable public standards, identifying gaps, and deciding when to: reference, replace, update, or create standards.
• From individual to group action: Encourages moving initiatives from single contributors to multi‑stakeholder working groups (primes, manufacturers, purchasers, quality).
• Best practices: Regular SRS reviews, state requirements as results rather than prescriptive means, reference public standards within company standards, avoid copying text from standards, and proactive engagement with standardisation bodies.
• Terminology & contacts: Includes definitions (public standard, company standard, SRS) and contact points (ASD‑STAN, national bodies such as BSI, DIN, UNI, etc.).

Practical applications & users

Who uses EN 4617:2006:

• Prime contractors - to reduce document maintenance, qualification costs and product diversity.
• Manufacturers / suppliers - to lower manufacturing and stock costs, increase market access and influence standards development.
• Designers, specification writers, purchasing, quality - to adopt harmonised requirements and simplify procurement and compliance.
• Program managers & integrators - during mergers, new program launches or obsolescence management.

Practical benefits:

• Lower production costs, shorter lead times, reduced non‑conformity risk, wider supplier competition and simplified document control.

Related standards & bodies

• Recommends engaging with ASD‑STAN, CEN, ISO and national standards bodies (BSI, DIN, UNI, etc.) for drafting, monitoring and influencing public standards.
• EN 4617 is part of the aerospace standardisation ecosystem and complements existing industry and regulatory standards.

Keywords: EN 4617:2006, aerospace standardization, company standards, public standards, standard reference system, harmonisation, ASD‑STAN, CEN.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.MHWMLKLuft- und Raumfahrt - Harmonisierung von WerknormenSérie aérospatiale - Normaliser les standards d'entrepriseAerospace series - Recommended practices for standardising company standards49.020Letala in vesoljska vozila na splošnoAircraft and space vehicles in general01.120Standardizacija. Splošna pravilaStandardization. General rulesICS:Ta slovenski standard je istoveten z:EN 4617:2006SIST EN 4617:2009en,de01-september-2009SIST EN 4617:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4617May 2006ICS 49.020 English VersionAerospace series - Recommended practices for standardisingcompany standardsSérie aérospatiale - Normaliser les standards d'entrepriseLuft- und Raumfahrt - Harmonisierung von WerknormenThis European Standard was approved by CEN on 6 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4617:2006: ESIST EN 4617:2009

Terminology and contact points.12
all involved in the life cycle of a product, from the design stage until its withdrawal from service. The purpose of this guide is to:  encourage specification writers and designers to make greater use of existing recognised standards and at the same time to reduce the use of company standards;  increase the awareness among specification writers, designers, manufacturers and users of company standards of the value and importance of being part of a joint multilateral approach to formalising, through standards, requirements for which the audience is generally known;  provide methodological support for the users of company standards when undertaking the rationalisation of various requirements. The achievement of this objective will be measured by:  the reduction in the total volume of standards documentation, with an increase in the use of public standards as opposed to company standards,  lower production costs arising from a reduction in product diversity.
Figure 1 — Harmonization Approach Public Standards Company standards Strategy _
New programme Existing programme _
Economical input_ _ _ _
GUIDELINES Company standards ManufacturersOEM Nat.StdISO EN SDOSIST EN 4617:2009

SHORTER LEAD TIMES • Availability of product at manufacturers
QUALITY • Requirements based on wider experience(s) • Technical control of common requirements • Simplified management of document system during company mergers or splits
 Definition of requirements: • Possibility that they will not fully satisfy all requirements, including the qualification. • No direct control over changes.
 Drafting of the public standard: • longer timescale (consensus, approval cycle), • subject to standard layout and format. DISADVANTAGES
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