prEN ISO 31915-3

SLOVENSKI STANDARD
01-junij-2025
Podporna oprema na tleh za letalski promet - Splošne zahteve - 3. del: Metode
merjenja in zmanjševanje vibracij (ISO/DIS 31915-3:2025)
Aircraft ground support equipment - General requirements - Part 3: Vibration
measurement methods and reduction (ISO/DIS 31915-3:2025)
Luftfahrtbodengeräte - Allgemeine Anforderungen - Teil 3: Schwingungsmessverfahren
und -minderung (ISO/DIS 31915-3:2025)
Matériel au sol pour aéronefs - Exigences générales - Partie 3: Vibrations, réduction et
méthodes de mesure (ISO/DIS 31915-3:2025)
Ta slovenski standard je istoveten z: prEN ISO 31915-3
ICS:
17.160 Vibracije, meritve udarcev in Vibrations, shock and
vibracij vibration measurements
49.100 Oprema za servis in Ground service and
vzdrževanje na tleh maintenance equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 31915-3
ISO/TC 20/SC 9
Aircraft ground support
Secretariat: AFNOR
equipment — General
Voting begins on:
requirements —
2025-03-31
Part 3:
Voting terminates on:
2025-06-23
Vibration measurement methods
and reduction
ICS: 49.100; 13.160
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 31915-3:2025(en)
DRAFT
ISO/DIS 31915-3:2025(en)
International
Standard
ISO/DIS 31915-3
ISO/TC 20/SC 9
Aircraft ground support
Secretariat: AFNOR
equipment — General
Voting begins on:
requirements —
Part 3:
Voting terminates on:
Vibration measurement methods
and reduction
ICS: 49.100; 13.160
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
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NOTIFICATION OF ANY RELEVANT PATENT
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RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
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Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 31915-3:2025(en)
ii
ISO/DIS 31915-3:2025(en)
Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 List of hazards. 2
5 Safety requirements and/or protective risk reduction measures . 2
5.1 Vibration reduction .2
5.2 Quantities to be measured .3
5.3 Instrumentation .3
5.3.1 General .3
5.3.2 Transducers .3
5.3.3 Frequency weighting .3
5.3.4 Integration time .3
5.3.5 Speed .4
5.4 Measurement location .4
5.5 Set up and equipment .4
5.5.1 Test track .4
5.5.2 Equipment and condition of the GSE .6
5.5.3 Drivers .6
5.5.4 Environmental parameter .6
5.6 Measurement procedure and validity .6
5.6.1 Speed .6
5.6.2 Test procedure.7
5.6.3 Validity of test .7
5.6.4 Coefficient of variation .7
5.6.5 Reported vibration values .7
5.7 Items to be included in the test report .8
5.8 Declaration of vibration emission values .8
6 Verification of requirements . 9
7 Information for use . 9
Annex A (informative) List of significant hazards . 10
Annex B (informative) Guidance for reporting vibration data .11
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2023/1230 aimed to be covered .12
Bibliography .13

iii
ISO/DIS 31915-3:2025(en)
Foreword
This document (prEN ISO 31915-3:2025) has been prepared by Technical Committee CEN/TC 274 “Aircraft
ground support equipment”, the secretariat of which is held by DIN (Germany).
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1915-3:2004+A1:2009.
The main changes compared to the previous edition are:
— clause 2, Normative references, was updated;
— clause 4, List of hazards, was added;
— clause 7, Information of use, was updated
— 5.6.1 was updated;
— Annex A, List of significant hazards, was added;
— Annex ZA was updated;
— the Bibliography was updated.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annexes ZA, which is an integral parts of this
document.
EN 1915, Aircraft ground support equipment — General requirements, consists of the following parts:
— Part 1: Basic safety requirements;
— Part 2: Stability and strength requirements, calculations and test methods;
— Part 3: Vibration measurement methods and reduction (the present document);
— Part 4: Noise measurement methods and reduction.
EN 12312, Aircraft ground support equipment — Specific requirements, consists of the following parts:
— Part 1: Passenger stairs;
— Part 2: Catering vehicles;
— Part 3: Conveyor belt vehicles;
— Part 4: Passenger boarding bridges;
— Part 5: Aircraft fuelling equipment;
— Part 6: Deicers and deicing/antiicing equipment;
— Part 7: Aircraft movement equipment;
— Part 8: Maintenance or service stairs and platforms;
— Part 9: Container/Pallet loaders;
— Part 10: Container/Pallet transfer transporters;
— Part 11: Container/Pallet dollies and loose load trailers;

iv
ISO/DIS 31915-3:2025(en)
— Part 12: Potable water service equipment;
— Part 13: Lavatory service equipment;
— Part 14: Disabled/Incapacitated passenger boarding equipment;
— Part 15: Baggage and equipment tractors;
— Part 16: Air start equipment;
— Part 17: Air conditioning equipment;
— Part 18: Nitrogen or Oxygen units;
— Part 19: Aircraft jacks, axle jacks and hydraulic tail stanchions;
— Part 20: Ground power equipment.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, Republic of North Macedonia, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

v
ISO/DIS 31915-3:2025(en)
Introduction
The aim of this document is to deal with vibration as a hazard and to provide methods for the measurement
and reduction of vibration emission transmitted to the whole body of drivers of GSE, when driving. For
determining whole body vibrations under stationary operating conditions and hand-arm vibrations
EN 1032:2003+A1:2008 is used.
It is intended that the results obtained can also be used to compare GSE of the same category or a given GSE
when equipped with different seats or tyres, etc.
Fitting different seats, changing the tyre specification, etc. can lead to different vibration values. Due to
the specific operation of GSE, however, EN 1032:2003+A1:2008 cannot be applied directly for whole body
vibration under driving conditions, and therefore, the preparation of this document for GSE has become
necessary.
This document cannot be used for field measurements to determine the daily exposure of the driver to
vibration.
This document is a Type C standard as stated in EN ISO 12100:2010.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
When requirements of this type C standard are different from those which are stated in type-A or type-B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards, for machines that have been designed and built according to the requirements of this type-C
standard.
vi
DRAFT International Standard ISO/DIS 31915-3:2025(en)
Aircraft ground support equipment — General
requirements —
Part 3:
Vibration measurement methods and reduction
1 Scope
This Document deals with whole body vibration as a significant hazard. It also specifies the methods for
determining the vibration emission transmitted to the whole body of drivers standing and/or seated on
freely moveable GSE, when driving for purposes of type evaluation, declaration and methods of verifying
vibration emission.
The test results are not applicable to the determination of whole body vibration exposure of persons.
This Document is intended to be used in conjunction with the other parts of EN 1915, and with the relevant
part of EN 12312.
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 1032:2003+A1:2008, Mechanical vibration — Testing of mobile machinery in order to determine the
vibration emission value
EN 1915-1:2023, Aircraft ground support equipment — General requirements — Part 1: Basic safety
requirements
EN 12096:1997, Mechanical vibration — Declaration and verification of vibration emission values
EN ISO 12100:2010, Safety of machinery - General principles for design — Risk assessment and risk reduction
(ISO 12100:2010)
ISO 2041:2018, Mechanical vibration, shock and condition monitoring — Vocabulary
ISO 5805:1997, Mechanical vibration and shock — Human exposure — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010, EN 1915-1:2023,
ISO 2041:2018 and ISO 5805:1997 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp/
— IEC Electropedia: available at https:// www .electropedia .org/

ISO/DIS 31915-3:2025(en)
3.1
wheel diameter
arithmetic mean of each of the outside diameters of the load bearing wheels
EXAMPLE If the first wheel of the GSE has the diameter D , the second wheel diameter D etc., the wheel mean
1 2
diameter equals
DD++…+D
12 n
n
where n is the total number of wheels
Note 1 to entry: The outside diameter D, is the maximum in service diameter specified by the tyre's manufacturer.
3.2
seat pan
seat surface on which the driver is seated
4 List of hazards
This list of risks and hazards (given at Annex A, Table A.1) is based on EN ISO 12100:2010 and contains the
hazards and hazardous situations, as far as they are dealt with in this document, identified by risk assessment
as significant for this type of machinery and which require action to eliminate or reduce risks. See also the
complementary list of hazards in the other parts of EN 1915 and in the different parts of EN 12312.
5 Safety requirements and/or protective risk reduction measures
5.1 Vibration reduction
Vibration emission is a significant hazard, which shall be reduced to the lowest level taking into account the
techn
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