Human response to vibration - Guidance and terminology for instrumentation and equipment for the assessment of daily vibration exposure at the workplace according to the requirements of health and safety (ISO/TR 19664:2017)

The assessment of human exposure to vibration, to both the hand-arm system and the whole body, at the workplace relies on the combined evaluation of both vibration magnitudes and exposure times. Determining these values can employ various instrumentation types and data sources. ISO/TR 19664:2017 provides guidance and explanation of concepts used for the following:
- measurement processes;
- instrumentation types;
- vibration magnitude source.

Schwingungseinwirkung auf den Menschen - Anleitung und Fachausdrücke für Messgeräte und Hilfseinrichtungen zur Beurteilung der Tages-Schwingungsbelastung am Arbeitsplatz entsprechend den Gesundheits- und Sicherheitsanforderungen (ISO/TR 19664:2017)

Réponse des individus aux vibrations - Lignes directrices et terminologie pour l'instrumentation et l'équipement d'évaluation de l'exposition journalière aux vibrations sur le lieu de travail selon les exigences de santé et de sécurité (ISO/TR 19664:2017)

L'évaluation de l'exposition des individus aux vibrations transmises à la fois au niveau du système main-bras et au niveau de l'ensemble du corps, sur le lieu de travail, repose sur l'évaluation combinée des amplitudes de vibration et des temps d'exposition. Plusieurs types d'instruments et sources de données peuvent être utilisés pour déterminer ces valeurs. Le présent document fournit des recommandations et une explication des concepts utilisés pour:
—          les processus de mesure;
—          les types d'instruments;
—          la source de l'amplitude de vibration.

Odzivanje človeka na vibracije - Navodilo in terminologija za instrumente in opremo za ocenjevanje dnevne izpostavljenosti vibracijam na delovnem mestu v skladu z zahtevami glede varnosti in zdravja (ISO/TR 19664:2017)

Ocena izpostavljenosti oseb vibracijam, tako izpostavljenosti rok kot celega telesa, na delovnem mestu temelji na kombinirani oceni tako moči vibracij kot tudi časa izpostavljenosti. Te vrednosti je mogoče določiti z različnimi vrstami instrumentov in podatkovnimi viri. ISO/TR 19664:2017 podaja smernice in razlage pojmov, ki se uporabljajo za:
– procese merjenja;
– vrste instrumentov;
– izvor jakosti vibracij.

General Information

Status
Published
Public Enquiry End Date
10-Oct-2018
Publication Date
17-Dec-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Dec-2018
Due Date
16-Feb-2019
Completion Date
18-Dec-2018

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CEN ISO/TR 19664:2019
01-februar-2019
2G]LYDQMHþORYHNDQDYLEUDFLMH1DYRGLORLQWHUPLQRORJLMD]DLQVWUXPHQWHLQ
RSUHPR]DRFHQMHYDQMHGQHYQHL]SRVWDYOMHQRVWLYLEUDFLMDPQDGHORYQHPPHVWXY
VNODGX]]DKWHYDPLJOHGHYDUQRVWLLQ]GUDYMD ,6275
Human response to vibration - Guidance and terminology for instrumentation and
equipment for the assessment of daily vibration exposure at the workplace according to
the requirements of health and safety (ISO/TR 19664:2017)
Schwingungseinwirkung auf den Menschen - Anleitung und Fachausdrücke für
Messgeräte und Hilfseinrichtungen zur Beurteilung der Tages-Schwingungsbelastung
am Arbeitsplatz entsprechend den Gesundheits- und Sicherheitsanforderungen (ISO/TR
19664:2017)
Réponse des individus aux vibrations - Lignes directrices et terminologie pour
l'instrumentation et l'équipement d'évaluation de l'exposition journalière aux vibrations
sur le lieu de travail selon les exigences de santé et de sécurité (ISO/TR 19664:2017)
Ta slovenski standard je istoveten z: CEN ISO/TR 19664:2018
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
13.160 Vpliv vibracij in udarcev na Vibration and shock with
ljudi respect to human beings
17.160 Vibracije, meritve udarcev in Vibrations, shock and
vibracij vibration measurements
SIST-TP CEN ISO/TR 19664:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST-TP CEN ISO/TR 19664:2019

---------------------- Page: 2 ----------------------

SIST-TP CEN ISO/TR 19664:2019


CEN ISO/TR 19664
TECHNICAL REPORT

RAPPORT TECHNIQUE

December 2018
TECHNISCHER BERICHT
ICS 13.160; 17.160
English Version

Human response to vibration - Guidance and terminology
for instrumentation and equipment for the assessment of
daily vibration exposure at the workplace according to the
requirements of health and safety (ISO/TR 19664:2017)
Réponse des individus aux vibrations - Lignes Schwingungseinwirkung auf den Menschen - Anleitung
directrices et terminologie pour l'instrumentation et und Fachausdrücke für Messgeräte und
l'équipement d'évaluation de l'exposition journalière Hilfseinrichtungen zur Beurteilung der Tages-
aux vibrations sur le lieu de travail selon les exigences Schwingungsbelastung am Arbeitsplatz entsprechend
de santé et de sécurité (ISO/TR 19664:2017) den Gesundheits- und Sicherheitsanforderungen
(ISO/TR 19664:2017)


This Technical Report was approved by CEN on 9 November 2018. It has been drawn up by the Technical Committee CEN/TC
231.

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. CEN ISO/TR 19664:2018 E
worldwide for CEN national Members.

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SIST-TP CEN ISO/TR 19664:2019
CEN ISO/TR 19664:2018 (E)
Contents Page
European foreword . 3

2

---------------------- Page: 4 ----------------------

SIST-TP CEN ISO/TR 19664:2019
CEN ISO/TR 19664:2018 (E)
European foreword
The text of ISO/TR 19664:2017 has been prepared by Technical Committee ISO/TC 108 "Mechanical
vibration, shock and condition monitoring” of the International Organization for Standardization (ISO)
and has been taken over as CEN ISO/TR 19664:2018 by Technical Committee CEN/TC 231 “Mechanical
vibration and shock” the secretariat of which is held by DIN.
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.
Endorsement notice
The text of ISO/TR 19664:2017 has been approved by CEN as CEN ISO/TR 19664:2018 without any
modification.

3

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SIST-TP CEN ISO/TR 19664:2019

---------------------- Page: 6 ----------------------

SIST-TP CEN ISO/TR 19664:2019
TECHNICAL ISO/TR
REPORT 19664
First edition
2017-05
Human response to vibration —
Guidance and terminology for
instrumentation and equipment for
the assessment of daily vibration
exposure at the workplace according to
the requirements of health and safety
Réponse des individus aux vibrations — Lignes directrices et
terminologie pour l’instrumentation et l’équipement d’évaluation de
l’exposition journalière aux vibrations sur le lieu de travail selon les
exigences de santé et de sécurité
Reference number
ISO/TR 19664:2017(E)
©
ISO 2017

---------------------- Page: 7 ----------------------

SIST-TP CEN ISO/TR 19664:2019
ISO/TR 19664:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

---------------------- Page: 8 ----------------------

SIST-TP CEN ISO/TR 19664:2019
ISO/TR 19664:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Explanation of concepts used for the measurement process . 2
5 Explanation of concepts used for instrumentation types . 3
5.1 General . 3
5.2 Vibration magnitude evaluation . 3
5.3 Exposure time evaluation . 4
5.3.1 Machine timer . 4
5.3.2 Exposure timer . 4
5.4 Exposure calculation based on external data . 4
5.4.1 Vibration exposure calculator . 4
5.4.2 Vibration meter with exposure calculation . 4
5.4.3 Exposure timer with exposure calculation . 5
5.5 Exposure evaluation by measurement . 5
5.5.1 Personal vibration exposure meter (PVEM) . 5
5.5.2 Vibration exposure meter (VEM) . 5
6 Explanation of concepts used for the vibration magnitude source .5
6.1 General . 5
6.2 Manufacturer emission value . 5
6.3 Manufacturer supplementary values . 5
6.4 Comparable machine values . 6
6.5 Machine-specific vibration database values . 6
6.6 Type-specific vibration database values . 6
Annex A (informative) Examples of equipment for the evaluation of daily vibration exposure .7
Bibliography .10
© ISO 2017 – All rights reserved iii

---------------------- Page: 9 ----------------------

SIST-TP CEN ISO/TR 19664:2019
ISO/TR 19664:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and
condition monitoring.
iv © ISO 2017 – All rights reserved

---------------------- Page: 10 ----------------------

SIST-TP CEN ISO/TR 19664:2019
ISO/TR 19664:2017(E)

Introduction
Several kinds of device can be used to measure or estimate the vibration magnitude and exposure
duration needed for the assessment of daily vibration exposure at the workplace.
Measuring instrumentation conforming to the requirements of ISO 8041-1 allows the user to perform
good quality repeatable measurements. Measurements using a general-purpose vibration meter are
typically undertaken when equipment (like a hand-held machine or a fork-lift truck) is in operation
allowing attended, direct readings to be taken providing information regarding possible errors and
transient acceleration artefacts. Unattended measurements can be taken using a personal vibration
exposure meter, logging readings taken, for example, over a full working day to provide information
regarding work patterns including transient acceleration artefacts. Using such instrumentation,
the result is always a vibration value or a vibration dose based on vibration readings as taken by the
instrumentation.
In addition, there exists auxiliary equipment which can support risk assessment. Such equipment might
measure the duration of exposure or estimate the instantaneous vibration dose, using, for example, the
information given by the manufacturer on the vibration emission of the machinery used, and might give
information when vibration limits are approached or exceeded. Even though such auxiliary equipment
does not constitute measuring instrumentation conforming to ISO 8041-1, it is currently used and
can be advantageous for keeping occupational vibration limits and for systematic health and safety
monitoring. When using such equipment, usually vibration is not really measured.
However, the differences between the instrumentation and equipment features lead to results of
varying reliability. By giving guidance and explaining terminology, this document provides clarity
regarding the limitations that can be expected when using different instrumentation and equipment
for the assessment of daily vibration exposure at the workplace.
© ISO 2017 – All rights reserved v

---------------------- Page: 11 ----------------------

SIST-TP CEN ISO/TR 19664:2019

---------------------- Page: 12 ----------------------

SIST-TP CEN ISO/TR 19664:2019
TECHNICAL REPORT ISO/TR 19664:2017(E)
Human response to vibration — Guidance and terminology
for instrumentation and equipment for the assessment of
daily vibration exposure at the workplace according to the
requirements of health and safety
1 Scope
The assessment of human exposure to vibration, to both the hand-arm system and the whole body,
at the workplace relies on the combined evaluation of both vibration magnitudes and exposure times.
Determining these values can employ various instrumentation types and data sources. This document
provides guidance and explanation of concepts used for the following:
— measurement processes;
— instrumentation types;
— vibration magnitude source.
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.
ISO 2041, Mechanical vibration, shock and condition monitoring — Vocabulary
ISO 2631-1, Mechanical vibration and shock — Evaluation of human exposure to whole-body vibration —
Part 1: General requirements
ISO 5349-1, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted
vibration — Part 1: General requirements
ISO 8041-1, Human response to vibration — Measuring instrumentation — Part 1: General-purpose
vibration meters
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2041, ISO 2631-1, ISO 5349-1
and ISO 8041-1 and the following 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
assessment
process of determining whether a worker (machine user) is at risk from exposure
to vibration
© ISO 2017 – All rights reserved 1

---------------------- Page: 13 ----------------------

SIST-TP CEN ISO/TR 19664:2019
ISO/TR 19664:2017(E)

3.2
evaluation
process of determining a value of vibration exposure
Note 1 to entry: This process is often specified in standards.
3.3
estimation
process of evaluating a worker’s (machine user’s) exposure where estimates and
assumptions are made about vibration magnitudes and exposure durations
4 Explanation of concepts used for the
...

SLOVENSKI STANDARD
kSIST-TP FprCEN ISO/TR 19664:2018
01-oktober-2018
2G]LYDQMHþORYHNDQDYLEUDFLMH1DYRGLODLQWHUPLQRORJLMD]DLQVWUXPHQWHLQ
RSUHPR]DRFHQMHYDQMHGQHYQHL]SRVWDYOMHQRVWLYLEUDFLMDPQDGHORYQHPPHVWXY
VNODGX]]DKWHYDPLJOHGHYDUQRVWLLQ]GUDYMD ,6275
Human response to vibration - Guidance and terminology for instrumentation and
equipment for the assessment of daily vibration exposure at the workplace according to
the requirements of health and safety (ISO/TR 19664:2017)
Schwingungseinwirkung auf den Menschen - Anleitung und Fachausdrücke für
Messgeräte und Hilfseinrichtungen zur Beurteilung der Tages-Schwingungsbelastung
am Arbeitsplatz entsprechend den Gesundheits- und Sicherheitsanforderungen (ISO/TR
19664:2017)
Réponse des individus aux vibrations - Lignes directrices et terminologie pour
l'instrumentation et l'équipement d'évaluation de l'exposition journalière aux vibrations
sur le lieu de travail selon les exigences de santé et de sécurité (ISO/TR 19664:2017)
Ta slovenski standard je istoveten z: FprCEN ISO/TR 19664
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
13.160 Vpliv vibracij in udarcev na Vibration and shock with
ljudi respect to human beings
17.160 Vibracije, meritve udarcev in Vibrations, shock and
vibracij vibration measurements
kSIST-TP FprCEN ISO/TR 19664:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018

---------------------- Page: 2 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
TECHNICAL ISO/TR
REPORT 19664
First edition
2017-05
Human response to vibration —
Guidance and terminology for
instrumentation and equipment for
the assessment of daily vibration
exposure at the workplace according to
the requirements of health and safety
Réponse des individus aux vibrations — Lignes directrices et
terminologie pour l’instrumentation et l’équipement d’évaluation de
l’exposition journalière aux vibrations sur le lieu de travail selon les
exigences de santé et de sécurité
Reference number
ISO/TR 19664:2017(E)
©
ISO 2017

---------------------- Page: 3 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
ISO/TR 19664:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

---------------------- Page: 4 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
ISO/TR 19664:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Explanation of concepts used for the measurement process . 2
5 Explanation of concepts used for instrumentation types . 3
5.1 General . 3
5.2 Vibration magnitude evaluation . 3
5.3 Exposure time evaluation . 4
5.3.1 Machine timer . 4
5.3.2 Exposure timer . 4
5.4 Exposure calculation based on external data . 4
5.4.1 Vibration exposure calculator . 4
5.4.2 Vibration meter with exposure calculation . 4
5.4.3 Exposure timer with exposure calculation . 5
5.5 Exposure evaluation by measurement . 5
5.5.1 Personal vibration exposure meter (PVEM) . 5
5.5.2 Vibration exposure meter (VEM) . 5
6 Explanation of concepts used for the vibration magnitude source .5
6.1 General . 5
6.2 Manufacturer emission value . 5
6.3 Manufacturer supplementary values . 5
6.4 Comparable machine values . 6
6.5 Machine-specific vibration database values . 6
6.6 Type-specific vibration database values . 6
Annex A (informative) Examples of equipment for the evaluation of daily vibration exposure .7
Bibliography .10
© ISO 2017 – All rights reserved iii

---------------------- Page: 5 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
ISO/TR 19664:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and
condition monitoring.
iv © ISO 2017 – All rights reserved

---------------------- Page: 6 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
ISO/TR 19664:2017(E)

Introduction
Several kinds of device can be used to measure or estimate the vibration magnitude and exposure
duration needed for the assessment of daily vibration exposure at the workplace.
Measuring instrumentation conforming to the requirements of ISO 8041-1 allows the user to perform
good quality repeatable measurements. Measurements using a general-purpose vibration meter are
typically undertaken when equipment (like a hand-held machine or a fork-lift truck) is in operation
allowing attended, direct readings to be taken providing information regarding possible errors and
transient acceleration artefacts. Unattended measurements can be taken using a personal vibration
exposure meter, logging readings taken, for example, over a full working day to provide information
regarding work patterns including transient acceleration artefacts. Using such instrumentation,
the result is always a vibration value or a vibration dose based on vibration readings as taken by the
instrumentation.
In addition, there exists auxiliary equipment which can support risk assessment. Such equipment might
measure the duration of exposure or estimate the instantaneous vibration dose, using, for example, the
information given by the manufacturer on the vibration emission of the machinery used, and might give
information when vibration limits are approached or exceeded. Even though such auxiliary equipment
does not constitute measuring instrumentation conforming to ISO 8041-1, it is currently used and
can be advantageous for keeping occupational vibration limits and for systematic health and safety
monitoring. When using such equipment, usually vibration is not really measured.
However, the differences between the instrumentation and equipment features lead to results of
varying reliability. By giving guidance and explaining terminology, this document provides clarity
regarding the limitations that can be expected when using different instrumentation and equipment
for the assessment of daily vibration exposure at the workplace.
© ISO 2017 – All rights reserved v

---------------------- Page: 7 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018

---------------------- Page: 8 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
TECHNICAL REPORT ISO/TR 19664:2017(E)
Human response to vibration — Guidance and terminology
for instrumentation and equipment for the assessment of
daily vibration exposure at the workplace according to the
requirements of health and safety
1 Scope
The assessment of human exposure to vibration, to both the hand-arm system and the whole body,
at the workplace relies on the combined evaluation of both vibration magnitudes and exposure times.
Determining these values can employ various instrumentation types and data sources. This document
provides guidance and explanation of concepts used for the following:
— measurement processes;
— instrumentation types;
— vibration magnitude source.
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.
ISO 2041, Mechanical vibration, shock and condition monitoring — Vocabulary
ISO 2631-1, Mechanical vibration and shock — Evaluation of human exposure to whole-body vibration —
Part 1: General requirements
ISO 5349-1, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted
vibration — Part 1: General requirements
ISO 8041-1, Human response to vibration — Measuring instrumentation — Part 1: General-purpose
vibration meters
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2041, ISO 2631-1, ISO 5349-1
and ISO 8041-1 and the following 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
assessment
process of determining whether a worker (machine user) is at risk from exposure
to vibration
© ISO 2017 – All rights reserved 1

---------------------- Page: 9 ----------------------
kSIST-TP FprCEN ISO/TR 19664:2018
ISO/TR 19664:2017(E)

3.2
evaluation
process of determining a value of vibration exposure
Note 1 to entry: This process is often specified in standards.
3.3
estimation
process of evaluating a worker’s (machine user’s) exposure where estimates and
assumptions are made about vibration magnitudes and exposure durations
4 Explanation of concepts used for the measurement process
The measurement of human exposure to vibration requires evaluation of vibration magnitudes
(weighted acceleration values) and vibration exposure times. The daily vibration exposure A(8) is
defined as:
T
1
2
A()8 = atd (1)
w

T
0
0
where
a is the relevant weighted acceleration value as a function of time (for hand-arm vibration, a is
w w
as defined in ISO 5349-1; for whole-body vibration, a is as defined in ISO 2631-1 or ISO 2631-2);
w
t is the time;
T is the total daily duration of exposure to vibration;
T is the reference exposure duration of 8 h (28 800 s).
0
For most practical measurements, the value of A(8) is determined as a series of distinct evaluations,
e.g. for different hand-held machines, different operating conditions, different vehicles. A(8) is then
determined as:
N
1
2
A()8 = aT (2)
∑ wii
T
0
i=1
where
a is the relevant weighted r.m.s. acceleration value for operation i (for hand-arm vibration, a is
wi wi
as defined in ISO 5349-1, for whole-body vibration, a is as defined in ISO 2631-1 or ISO 2631-2);
wi
N is the number of operations, i;
T is the daily duration of exposure to vibration, a ;
i wi
T is the reference exposure duration of 8 h (28 800 s).
0
It should be ensured that the exposure time represents the period over which the measurement is made,
for example, a measurement that includes breaks in operation represents a longer period of working
time than one which only measures during machine operation (see ISO 5349-2 or EN 14253).
NOTE Additional quant
...

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