Aerospace series - Tempered float glass plies for aircraft applications - Technical specification

This document specifies the requirements for tempered soda-lime float glass plies which are made from annealed glass either of the universally available type or of high light transmission type. The annealed glass is manufactured by a continuous process for general use.
The plies are tempered by either a thermal or chemical process.
The tempered glass is used mainly for cockpit glazing.

Luft- und Raumfahrt - Vorgespannte Floatglasscheiben für Luftfahrzeuganwendungen - Technische Lieferbedingungen

Dieses Dokument legt die Anforderungen an vorgespannte Kalk-Natron-Floatglasscheiben fest, die aus allgemein erhältlichem Glas oder Glas mit hoher Lichttransmission in entspanntem Zustand (gekühlt) hergestellt sind. Das entspannte Glas wird in einem kontinuierlichen Verfahren für allgemeine Anwendung hergestellt.
Die Scheiben werden entweder thermisch oder chemisch vorgespannt.
Das vorgespannte Glas wird hauptsächlich für die Cockpit-Verglasung verwendet.

Série aérospatiale - Plis de verre renforcés pour applications aéronautiques - Spécification technique

Le présent document spécifie les exigences relatives aux plis de verre flotté sodocalcique trempés qui sont fabriqués à partir de verre recuit disponible universellement ou de type à haute transmission lumineuse. Le verre recuit est fabriqué par un procédé pour un usage général.
Les plis sont trempés par un procédé thermal ou chimique.
Le verre trempé est principalement utilisé pour le vitrage du cockpit.

Aeronavtika - Utrjene plavajoče steklene plošče za uporabo v zrakoplovih - Tehnična specifikacija

Ta dokument določa zahteve za utrjeno natrij-kalcijevo plavajočo stekleno ploščo, ki je narejena iz žarjenega stekla, bodisi iz splošno dostopnega bodisi visoko svetlobno prenosnega stekla. Žarjeno steklo je izdelano v trajnem procesu za splošno rabo.
Plošče so utrjene bodisi s toplotnim bodisi kemičnim postopkom.
Utrjeno steklo se uporablja predvsem za zasteklitev pilotskih kabin.

General Information

Status
Published
Publication Date
04-Jun-2019
Withdrawal Date
30-Dec-2019
Technical Committee
Drafting Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
05-Jun-2019
Completion Date
05-Jun-2019

Overview

EN 3001:2019 is a European standard developed by CEN that defines the technical specifications for tempered float glass plies specifically designed for aerospace applications. This standard focuses on tempered soda-lime float glass made from annealed glass, available either as universally available or high light transmission types. These glass plies undergo thermal or chemical tempering processes and are predominantly used in aircraft cockpit glazing.

The standard ensures strict quality, optical, mechanical, and dimensional requirements are met to guarantee safety, durability, and optimal performance of glass components in demanding aerospace environments.

Key Topics

Glass Composition and Material

  • Soda-lime float glass: The glass complies with high standards from annealed soda-lime float glass, either as universally available or with enhanced light transmission due to low iron content.
  • Tempering methods: Thermal or chemical tempering induces a surface compression layer to improve mechanical strength and safety.

Dimensional and Physical Characteristics

  • Thickness tolerances: Standard thicknesses range from 2 mm to 19 mm with specified tolerances (e.g., ±0.2 mm for 2-6 mm thickness).
  • Density and expansion: Measured through ISO 1183-1 and ISO 7991 methods to ensure material stability under temperature variations.
  • Flatness and refractive index: Flatness must comply with EN 3863, and refractive index is determined following EN ISO 489 for optical precision.

Optical Performance

  • Light transmission: Measured for visible light per EN 2155-5 with additional spectrophotometric testing at 800 nm for high light transmission glass.
  • Optical defects and distortion: Limits are defined for bubbles, scratches, surface ripple, and optical distortions, ensuring visual clarity and safety in cockpit glazing.
  • Haze measurement: Conducted using EN 2155-9 to control clarity and transmission quality.

Mechanical Strength and Quality Assurance

  • Modulus of rupture (MOR): Strength is quantified as per EN 3864 on edge-worked and tempered samples to assess breaking resistance.
  • Stress profile testing: Stress distribution across glass plies is monitored per EN 3865, with acceptance tests regularly performed to maintain batch consistency.
  • Batch testing and qualification: Each batch undergoes rigorous acceptance testing, while manufacturers must follow EN 9133 quality management systems for qualification.

Marking, Storage, and Ordering

  • Traceability: Each ply is labeled with batch numbers linked to manufacturing records for full traceability.
  • Packaging: Storage and transport protocols prevent damage, using stillages or wooden crates with appropriate interweaves.
  • Ordering requirements: Purchase orders must specify drawings or master documents and strength requirements to meet application needs.

Applications

EN 3001:2019 tempered float glass plies are essential for:

  • Cockpit glazing: Providing safety, visibility, and durability against environmental and mechanical stress in aircraft cockpits.
  • Aircraft windows and windshields: Enhancing structural integrity while maintaining optical performance under variable aerospace conditions.
  • Other aerospace transparent components: Meeting strict regulatory and technical demands for commercial, military, and civil aviation glass parts.

The standard supports manufacturers, quality managers, and aerospace engineers by ensuring material consistency and compliance across the supply chain, ultimately improving aircraft safety and performance.

Related Standards

  • EN 2155 series: Test methods for transparent materials for aircraft glazing, covering light transmission, optical defects, distortion, and haze.
  • EN 3861 & EN 3862: Material standards for thermally and chemically tempered soda lime float glass, respectively.
  • EN 9133: Quality Management Systems - Qualification procedures specific to aerospace standard products.
  • EN 3863 to EN 3866: Test methods related to flatness, modulus of rupture, stress/optical measurement, and surface ripple of glass transparencies.
  • EN ISO 489 & ISO 1183-1: Reference methods for refractive index and density measurement relevant to glass and plastics.

Keywords: EN 3001:2019, tempered float glass, aircraft glazing, aerospace glass specifications, cockpit glass, soda-lime float glass, thermal tempering, chemical tempering, optical defects, aerospace standards, glass strength, glass light transmission, CEN aerospace standards.

Standard
EN 3001:2019
English language
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Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2019
Aeronavtika - Utrjene plavajoče steklene plošče za uporabo v zrakoplovih -
Tehnična specifikacija
Aerospace series - Tempered float glass plies for aircraft applications - Technical
specification
Luft- und Raumfahrt - Vorgespannte Floatglasscheiben für Luftfahrzeuganwendungen -
Technische Lieferbedingungen
Série aérospatiale - Plis de verre renforcés pour applications aéronautiques -
Spécification technique
Ta slovenski standard je istoveten z: EN 3001:2019
ICS:
49.045 Konstrukcija in konstrukcijski Structure and structure
elementi elements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3001
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2019
EUROPÄISCHE NORM
ICS 49.045
English Version
Aerospace series - Tempered float glass plies for aircraft
applications - Technical specification
Série aérospatiale - Plis de verre renforcés pour Luft- und Raumfahrt - Vorgespannte Floatglasscheiben
applications aéronautiques - Spécification technique für Luftfahrzeuganwendungen - Technische
Lieferbedingungen
This European Standard was approved by CEN on 14 January 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3001:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Required characteristics . 5
5 Quality assurance . 8
6 Storage and packing . 8
7 Marking . 8
8 Ordering . 8

European foreword
This document (EN 3001:2019) has been prepared by the Aerospace and Defence Industries Association
of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2019, and conflicting national standards shall
be withdrawn at the latest by December 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
1 Scope
This document specifies the requirements for tempered soda-lime float glass plies which are made from
annealed glass either of the universally available type or of high light transmission type. The annealed
glass is manufactured by a continuous process for general use.
The plies are tempered by either a thermal or chemical process.
The tempered glass is used mainly for cockpit glazing.
2 Normative references
The following 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.
EN 2155-5, Aerospace series — Test methods for transparent materials for aircraft glazing — Part 5:
Determination of visible light transmission
EN 2155-6, Aerospace series — Test methods for transparent materials for aircraft glazing —Part 6:
1)
Determination of optical defects
EN 2155-8, Aerospace series — Test methods for transparent materials for aircraft glazing — Part 8:
Determination of optical distortion
EN 2155-9, Aerospace series — Test methods for transparent materials for aircraft glazing — Part 9:
Determination of haze
EN 9133, Aerospace series — Quality Management Systems — Qualification Procedure for Aerospace
Standard Products
EN 3861, Aerospace series — Non-metallic materials — Glass transparencies — Material standard —
Thermally tempered soda lime float glass
EN 3862, Aerospace series — Non-metallic materials — Glass transparencies — Material standard —
Chemically tempered soda lime float glass
EN 3863, Aerospace series — Non-metallic materials — Glass transparencies — Test methods —
Determination of flatness
EN 3864, Aerospace series — Non-metallic materials — Glass transparencies — Test methods —
Determination of modulus of rupture
2)
EN 3865, Aerospace series — Stress/optical measurement of tempered glass — Test method
EN 3866, Aerospace series — Non-metallic materials — Glass transparencies — Test methods —
Determination of ream and surface ripple

1) Published as ASD-STAN Prestandard at the date of publication of this standard by AeroSpace and Defence industries
Association of Europe - Standardization (ASD-STAN) (http://www.asd-stan.org/)
2) In preparation at the date of publication of this standard.
EN ISO
...

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Frequently Asked Questions

EN 3001:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Tempered float glass plies for aircraft applications - Technical specification". This standard covers: This document specifies the requirements for tempered soda-lime float glass plies which are made from annealed glass either of the universally available type or of high light transmission type. The annealed glass is manufactured by a continuous process for general use. The plies are tempered by either a thermal or chemical process. The tempered glass is used mainly for cockpit glazing.

This document specifies the requirements for tempered soda-lime float glass plies which are made from annealed glass either of the universally available type or of high light transmission type. The annealed glass is manufactured by a continuous process for general use. The plies are tempered by either a thermal or chemical process. The tempered glass is used mainly for cockpit glazing.

EN 3001:2019 is classified under the following ICS (International Classification for Standards) categories: 49.045 - Structure and structure elements. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 3001:2019 is associated with the following European legislation: EU Directives/Regulations: TRRTP121. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase EN 3001:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

표준 EN 3001:2019은 항공 우주 시리즈에 관한 문서로, 항공기 응용을 위한 강화된 플로트 유리의 기술 규격을 제시합니다. 이 표준은 일반적으로 사용 가능한 유형 또는 고광 투과성 유형의 풀림 유리로 만들어진 강화된 소다-라임 플로트 유리 플라이에 대한 요구 사항을 명시하며, 풀림 유리는 연속 공정을 통해 생산됩니다. EN 3001:2019의 주요 강점은 체계적이고 명확한 절차를 통해 항공기에서 안전하고 효과적으로 사용할 수 있는 열처리 또는 화학적 처리로 강화된 유리의 규격을 제공한다는 점입니다. 이러한 절차는 강화 유리의 견고함과 내구성을 보장하여 조종실 유리에 주로 사용될 수 있도록 하여, 항공기 안전성에 기여합니다. 또한, 이 표준은 모두가 접근할 수 있는 유리 제조 공정에 기반하고 있어, 다양한 공급업체가 이를 준수하여 제품을 생산할 수 있도록 지원함으로써 산업 전반에 걸쳐 높은 품질의 강화 유리를 보장합니다. EN 3001:2019는 항공 우주 산업의 요구 사항을 충족하는 동시에 유리의 성능 및 안전 기준을 유지하여 항공기 설계와 제작에서 핵심적인 역할을 합니다. 따라서, EN 3001:2019는 항공기 응용을 위한 강화된 플로트 유리의 기술적 요구 사항을 포괄적으로 다루고 있으며, 업계의 신뢰받는 표준으로 자리 잡고 있습니다.

標準SIST EN 3001:2019は、航空宇宙業界における航空機用の強化フロートガラス層に関する技術仕様を明確に規定しています。この標準は、一般的に入手可能なタイプまたは高い光透過率を持つタイプの焼鈍ガラスから製造された強化ソーダ石灰フロートガラス層の要件を特定しています。焼鈍ガラスは、一般用途向けに連続プロセスで製造されるため、均一な品質と特性を持つことが保証されています。 この標準の強みは、強化プロセスにおける熱処理または化学処理の具体的な方法を明記している点です。これにより、ガラスの強度が向上し、航空機のコックピット用の透明部分としての安全性と耐久性が確保されています。また、強化されたガラス層は特定の環境条件に耐えるために設計されており、航空機の運用において不可欠な選択肢となります。 さらに、SIST EN 3001:2019の関連性は、航空機のコックピットの視界の確保や、パイロットの安全性に直結する重要な要因である点にあります。この標準は、航空機設計者や製造業者が遵守すべき基準を提示し、業界全体の品質向上に寄与しています。 従って、SIST EN 3001:2019は航空宇宙業界において、強化フロートガラスの使用に関連する技術的要件を網羅した詳細な基準であり、その適用範囲や強みは、航空機の安全性と機能性を支える基盤となっています。

The EN 3001:2019 standard focuses on the technical specifications for tempered float glass plies specifically designed for aircraft applications. This standard outlines comprehensive requirements that address the quality and performance attributes of tempered soda-lime float glass plies. The scope is explicitly relevant to the aerospace sector, detailing the properties and manufacturing processes of this critical material. A significant strength of EN 3001:2019 is its clear definition of the types of glass used, such as universally available soda-lime float glass and high light transmission glass. This distinction ensures manufacturers can source the appropriate materials that meet specific application needs. Furthermore, the standard specifies that the annealed glass is produced through a continuous process, which guarantees uniformity and consistency in production, vital for aviation safety. The document’s emphasis on the tempering processes-thermal or chemical-highlights its adaptability to various manufacturing techniques, making the standard applicable across different production environments. The focus on tempered glass is particularly relevant due to its enhanced strength and safety characteristics, which are crucial in cockpit glazing applications where visibility and durability are paramount. In conclusion, EN 3001:2019 serves as a foundational document for ensuring the integrity and functionality of tempered float glass in aeronautical applications. Its specifications align closely with the industry requirements, reinforcing the standard's importance in promoting safety and reliability in aircraft design. This standard is an essential resource for manufacturers and engineers dedicated to complying with aerospace regulations while advancing the quality of materials used in the aviation sector.