prEN 4876

SLOVENSKI STANDARD
01-junij-2021
Aeronavtika - Okoljski preskusi - Trajnost zaslonov za splošno uporabo
Aerospace series - Environmental testing - Durability of the displays by general usage
Luft- und Raumfahrt - Umweltprüfung - Beständigkeit der Displays bei allgemeiner
Nutzung
Série aérospatiale - Essais d'environnement - Durabilité des affichages d'utilisation
générale
Ta slovenski standard je istoveten z: prEN 4876
ICS:
31.120 Elektronske prikazovalne Electronic display devices
naprave
49.095 Oprema za potnike in Passenger and cabin
oprema kabin equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 31.120; 49.095
English Version
Aerospace series - Environmental testing - Durability of
the displays by general usage
Série aérospatiale - Essais d'environnement - Luft- und Raumfahrt - Umweltprüfung - Beständigkeit
Durabilité des affichages d'utilisation générale der Displays bei allgemeiner Nutzung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4876:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General test description . 5
4.1 General. 5
4.2 Fingertips and hand abrasion test . 5
4.3 Fingerprint affinity . 6
4.4 Scratch and mar tests . 6
4.5 General abrasion tests . 7
4.6 Dirt affinity test . 7
4.7 Cleanability test . 8
5 Description of the test apparatus . 8
5.1 Fingertip and hand abrasion test . 8
5.1.1 General. 8
5.1.2 Test fabric . 8
5.1.3 Test media . 8
5.2 Fingerprint test for cabin touch screens . 8
5.2.1 General. 8
5.2.2 Test fabric . 9
5.2.3 Test media . 9
5.3 Scratch and mar tests . 9
5.4 General abrasion tests . 9
5.5 Dirt affinity test . 9
5.5.1 General. 9
5.5.2 Test fabric . 9
5.5.3 Test media . 9
5.6 Cleanability test . 10
5.6.1 General. 10
5.6.2 Test fabric . 10
5.6.3 Test media . 10
6 Severity . 10
6.1 Fingertip and hand abrasion test for cabin touch screens . 10
6.2 Fingerprint affinity test . 10
6.3 Scratch/mar tests. 10
6.4 General abrasion test . 10
6.5 Dirt affinity test . 10
6.6 Cleanability test . 11
7 Preconditioning . 11
8 Initial measurements . 11
9 Testing . 11
9.1 General. 11
9.2 Fingertip and hand abrasion test for cabin touch screens . 11
9.3 Fingerprint affinity test . 11
9.4 Scratch/mar tests . 11
9.5 General abrasion tests . 11
9.6 Dirt affinity test . 11
9.7 Cleanability test . 12
10 Intermediate measurements . 12
11 Recovery . 12
12 Damage documentation and analysis . 12
12.1 Visual evaluation . 12
12.2 Water drop angle test . 12
12.3 Documentation and topographical analysis on damaged area . 13
12.4 Fast abrasion evaluation with Micro-Calotest . 13
13 Relevant information to be given in the test report . 15
Annex A (informative) Schematic drawing of a test apparatus for generating the fingerprint . 17
Annex B (informative) Schematic drawing of a test apparatus for pencil abrasion test . 18
Annex C (informative) Additional textiles for testing . 19
Bibliography . 20

European foreword
This document (prEN 4876:2021) 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 document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
1 Scope
This document provides a series of testing methods to determine the resistance of the digital display
during general usage in an aircraft cabin. The document applies to any passive and interactive displays.
It includes also dirt affinity and cleanability.
The testing methods include the determination of the durability of touchscreen surfaces, signing pads
and general displays against human fingertip and hand abrasion, fingerprint and dirt affinity under the
usage by humans as can occur during everyday operation inside an aircraft cabin. Additionally, the
resistance against general abrasion, scratch and mar on the displays as well as the resistance study
against the routine cleaning procedure conducted inside the aircraft is defined.
The test methods are also suitable to test the durability of a display surface against all low and high
dynamic strains.
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.
prEN 4860, Aerospace series — Environmental testing — Test Xb: Abrasion of markings, letterings,
surfaces and materials caused by rubbing of fingertip
...