EN 4730:2018

SLOVENSKI STANDARD
01-februar-2019
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Aerospace series - Anthropometric dimensioning of aircraft seats
Luft- und Raumfahrt - Anthropometrische Dimensionierung von Flugzeugsitzen
Série aérospatiale - Dimensionnement anthropométrique des sièges passagers d’avion
Ta slovenski standard je istoveten z: EN 4730:2018
ICS:
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.

EN 4730
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2018
EUROPÄISCHE NORM
ICS
English Version
Aerospace series - Anthropometric dimensioning of
aircraft seats
Série aérospatiale - Dimensionnement Luft- und Raumfahrt - Anthropometrische
anthropométrique des sièges passagers d'avion Dimensionierung von Flugzeugsitzen
This European Standard was approved by CEN on 19 February 2018.

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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4730:2018 E
worldwide for CEN national Members.

Contents
Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Engineering anthropometry . 9
4.1 Anthropometric design . 9
4.2 “Fit” and “Reach” problems . 9
4.3 Percentiles and design limit . 9
4.4 Means and procedure . 10
5 Usage of anthropometric data . 11
5.1 Identification of target group . 11
5.2 Selection of data sets . 11
5.2.1 Biases . 11
5.2.2 International populations . 11
5.3 Selection of relevant anthropometric measurements . 12
5.4 Clothing and posture corrections . 12
5.5 Clearances and margins . 12
5.6 Compression of cushion . 12
5.7 Integration and evaluation . 12
5.8 Documentation . 13
5.9 Examples . 13
(informative) Statistical properties of anthropometrical measurements . 17
A.1 Distribution parameters. 17
A.2 Accuracy, validity and reliability . 19
(informative) Estimates of missing anthropometric measurements . 21
B.1 Ratio scaling . 21
B.2 Proportionality constants . 22
(informative) Estimates of updates . 24
(informative) Estimates of percentile values (evaluation) . 27
D.1 Normal distributed measurements . 27
D.1.1 Estimate of percentiles with given mean and standard deviation . 27
D.1.2 Estimate of accommodation rate . 29
D.2 Skewed distributions (log-normal) . 29
D.3 General approach . 30
(informative) Example: Evaluation of anthropometric accommodation rates of an
economy class aircraft seat . 32
E.1 Seat geometry . 32
E.2 Anthropometric data . 32
E.3 Estimation of accommodation . 35
E.3.1 Seat width between armrests . 35
E.3.2 Total seat width . 35
E.3.3 Cushion height over floor . 35
E.4 Documentation . 36
Bibliography . 37

European foreword
This document (EN 4730:2018) 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 document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by May 2019, and conflicting national standards shall be withdrawn at
the latest by May 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.
Introduction
Flight passengers in commercial aviation spend the predominant part of their journey — which can
take 12 hours or more — on their seats. Therefore, aircraft passenger seats are designed to minimize
passengers’ discomfort. This includes the consideration of body size and its variation within the target
population.
This document gives guidance on the use of anthropometric data for the dimensioning of aircraft seats
to accommodate specific populations as well as mixed populations including the world population. This
document also gives advice on how to quantify seat comfort in terms of anthropometric
accommodation rates.
1 Scope
This document describes the application of anthropometric data for the dimensioning of aircraft
passenger seats. The focus is on the use of statistical parameters of anthropometrical measurements as
given in CEN ISO/TR 7250-2 and similar sources. Even if methods described in this document might be
applicable for feasibility and safety issues the scope of this document is design for comfort.
The aim of this document is to give advice to designers to include methods of human-centred design
into the design of aircraft seats.
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 4723:2015, Aerospace series — Standardized measurement methods for comfort and living space
criteria for aircraft passenger seats
EN ISO 15535:2012, General requirements for establishing anthropometric databases (ISO 15535:2012)
EN ISO 7250-1, Basic human body measurements for technological design — Part 1: Body measurement
definitions and landmarks
CEN ISO/TR 7250-2, Basic human body measurements for technological design — Part 2: Statistical
summaries of body measurements from national populations
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
anthropometry
study and measurement of the physical dimensions and mass of the human body and its constituent
(external) parts
Note 1 to entry: Taken from the Greek word anthropos (human being or Man) and metron, to measure.
[SOURCE: EN ISO 15535:2012, 3.6]
3.2
anthropometric data
dimensional measurements (such as heights, lengths, depths, breadths and circumferences) of the
human body and its component parts
[SOURCE: EN ISO 15535:2012, 3.7]
3.3
percentile
statistical parameter indicating the value a given percentage of observations in a population go below
Note 1 to entry: For example 5 % of a population is shorter than the 5th percentile of stature of this population.
3.4
high percentile
percentile of a distribution of measurements of a body dimension representing a tall or corpulent
person
Note 1 to entry: For assessment of comfort usually the 95th percentile is used.
3.5
low percentile
percentile of a distribution of measurements of a body dimension representing a short person
Note 1 to entry: For assessment of comfort usually the 5th percentile is used.
3.6
sitting height (erect)
vertical distance from a horizontal sitting sur
...