ISO 2631-2:2026

• Abstract:

  This document concerns human exposure to whole-body vibration and shock in buildings with respect to the comfort and annoyance of the occupants based on both measurements and simulations. It specifies a method for measurement and evaluation, comprising the determination of the measurement direction and measurement location. It defines the frequency weighting, Wm, which is applicable in the frequency range 1 Hz to 80 Hz where the posture of an occupant does not need to be defined, see Annex A. NOTE 1 The frequency weightings given in ISO 2631-1 can be used if the posture of the occupant is defined. Whilst it is often the case that a building will be available for experimental investigation, many of the concepts contained within this document would apply equally to a building in the design process or where it will not be possible to gain access to an existing building. In these cases, reliance will have to be placed on the prediction of the building response by some means. This document does not provide guidance on the likelihood of structural damage, which is discussed in ISO 4866. Further, it is not applicable to the evaluation of effects on human health and safety. Acceptable magnitudes of vibration are not stated in this document, but guidance is provided in Annex C in the form of exposure-response curves for the estimation of annoyance when vibration originates from various sources, including railway, construction activities and blasting. NOTE 2 The exposure-response curves are based on the most recent evidence which suggests that human response to vibration in buildings is dependent on the magnitude, frequency, duration and temporal characteristics of the vibration[4]. In addition, it is known that other factors not directly related to the vibration characteristics have a significant influence on the annoyance response. These are identified in Annex B and include consideration of some parallel effects, subjective impressions and socio-demographic factors which need to be accounted for when collecting vibration data. NOTE 3 Several national standards have been proposed to define methods for assessing exposure to vibration in buildings as well as reference values for judging the annoyance resulting from exposure. These standards generally present significant differences in terms of metrics and methods used to quantify exposure as well as on the guideline values to prevent adverse effects. Some standards define limit values that are based on experimental field data leading to exposure-response relationships such as those proposed in Annex C. Other standards base their limit values on estimations that take into account vibration perception thresholds and situational factors. Some standards also consider the magnitude of vibration that can present a risk of damage to the buildings, particularly when blasting is involved.

• Status: Published
• Publication Date: 24-Jun-2026
• ICS: 13.160 - Vibration and shock with respect to human beings
• Technical Committee: ISO/TC 108/SC 4 - Human exposure to mechanical vibration and shock
• Drafting Committee: ISO/TC 108/SC 4/WG 13 - Evaluation of human exposure to whole-body vibration
• Current Stage: 6060 - International Standard published
• Start Date: 25-Jun-2026
• Due Date: 27-Sep-2026
• Completion Date: 25-Jun-2026

• Revises: ISO 2631-2:2003 - Mechanical vibration and shock — Evaluation of human exposure to whole-body vibration — Part 2: Vibration in buildings (1 Hz to 80 Hz)
• Effective Date: 28-Oct-2023

ISO 2631-2:2026 is an ISO standard for evaluating human exposure to whole-body vibration and shock in buildings. It specifies how to measure and evaluate vibration for occupant comfort and annoyance, including measurement direction, measurement location, and the Wm frequency weighting over 1 Hz to 80 Hz. It is written for people assessing vibration in occupied buildings, including situations where the building is being measured, designed, or predicted by simulation.

What does ISO 2631-2:2026 specify?

ISO 2631-2:2026 specifies a method for measuring and evaluating building vibration with respect to comfort and annoyance of occupants. It focuses on whole-body vibration in buildings and gives a common framework for survey, measurement, processing, rating, and presentation of vibration data.

Annex	What it covers
Annex A	Normative mathematical definition of the frequency weighting Wm
Annex B	Informative guidance for collecting human-response data
Annex C	Informative exposure-response relationships for estimating annoyance inside buildings

The scope is limited to comfort and annoyance. ISO 2631-2:2026 does not give guidance on structural damage, which is covered by ISO 4866, and it is not for health and safety assessment. For practice, that means the document helps decide how to measure and compare building vibration, but not whether the building is structurally at risk or whether the vibration is a health hazard.

The document also distinguishes between measured buildings and buildings in the design process. That matters because the same evaluation ideas can be used when access to an existing building is not possible and the building response must be predicted.

What are the key requirements of ISO 2631-2:2026?

ISO 2631-2:2026 requires a consistent measurement and evaluation approach built around the occupied building space, the vibration source, and the weighted vibration signal. The main steps are in Clause 4, with supporting guidance in Annexes A to C.

Measure in three directions and relate them to the building

Clause 4.2 requires vibration to be measured simultaneously in all three orthogonal directions, using axes related to the building structure rather than the human body. The x-, y- and z-axes follow the standing-person orientation used in ISO 2631-1.

In practice, this makes results comparable from room to room and project to project. It also prevents the evaluation from depending on how the occupant is facing or sitting.

Choose the measurement location based on occupation and disturbance

Clause 4.3 says each relevant room or place should be assessed according to expected occupation, the tasks performed, and expected freedom from disturbance. The measured vibration should come from the location where the highest weighted vibration is expected, unless the source calls for a specific location.

For blasting, the measurement location is near the foundation on a suitable rigid surface or on the building itself. In practice, this means the location is chosen to represent what people actually experience, not just what is convenient to instrument.

Apply Wm weighting for indoor building vibration

Clause 4.4 requires the measured vibration inside the building to be frequency weighted using Wm, regardless of direction. The standard uses frequency-weighted root-mean-square acceleration and vibration dose value to express exposure for sources such as railway, traffic, and construction activities.

Annex A gives the mathematical definition of Wm and one-third-octave-band values over the 1 Hz to 80 Hz range. If the occupant posture is defined, ISO 2631-1 weightings may be used instead. For users, this means the document provides a common weighting so vibration from different sites and sources can be compared on the same basis.

Use the highest weighted direction for evaluation

Clause 4.5.1 says vibration values inside the building are determined using the methods of ISO 2631-1, and the axis with the highest frequency-weighted magnitude is used for evaluation. The result may be expressed as rms acceleration and/or vibration dose value.

This matters because occupants usually respond to the strongest direction of motion. It keeps the assessment focused on the worst-case direction rather than averaging away the effect.

Treat blasting differently from other vibration sources

Clause 4.5.1 gives a separate method for blasting. For blasting, the standard calls for unweighted peak particle velocity (PPV) measured in three perpendicular directions near the foundation or on the building, with only the dominant directional component retained for exposure assessment.

That is important because blasting vibration is impulsive and is not handled the same way as continuous or intermittent building vibration. The document also recommends recording unweighted time histories where practicable so that later evaluations remain possible.

Classify the source type

Clause 4.5.2 groups vibration sources into four categories: permanent continuous processes, permanent intermittent activities, temporary activities, and isolated events. Examples include industry, traffic, railway, construction, and blasting.

This classification matters because acceptable magnitudes and response expectations can differ by source type. It gives users a practical way to describe the vibration context before comparing results.

Use suitable instrumentation

Clause 4.6 requires measuring instrumentation to meet the requirements of ISO 8041-1, including tolerances. In practice, this means the meter or system used for building vibration assessment must be fit for purpose and traceable to the general vibration-metering requirements of that standard.

What terms does ISO 2631-2:2026 define?

ISO 2631-2:2026 defines several terms that are central to building-vibration assessment.

• Evaluation - The range of activities from survey and measurement through processing, characterization, rating, response simulation, and presentation of data.
• Building - A civil engineering structure used for habitation or other human activity, including offices, factories, hospitals, schools, and day-care centres.
• Work time - The daily start and finish times that define the activity period of the vibration source.
• Exposure time - The period during which people are exposed to vibration.
• Peak particle velocity (PPV) - The maximum particle velocity at a point in the ground or structure during an event, taken from the measured unweighted velocity time signal.
• Running rms velocity - The root-mean-square velocity calculated over a moving time window, with slow or fast time constants.
• Vibration dose value (VDV) - Used throughout the document as a vibration exposure metric, especially in the evaluation and annex material.

Who uses ISO 2631-2:2026?

ISO 2631-2:2026 is used by vibration and acoustics engineers, consultants, and building specialists who need to assess occupant response to building vibration. It is also relevant to design teams working on buildings where vibration may be present but direct access for measurement is limited.

The document is useful for railway, traffic, construction, industry, and blasting-related projects where annoyance complaints may arise. It also supports data collection for surveys, complaint investigations, and comparisons between measured vibration and exposure-response relationships.

Quality managers, property owners, and buyers may use it to specify how building vibration will be assessed in a contract or survey brief. In practice, it helps define what should be measured, where, and how the result should be expressed.

What changed in ISO 2631-2:2026 from the previous edition?

ISO 2631-2:2026 is the third edition and it cancels and replaces ISO 2631-2:2003. The foreword states that it has been technically revised.

The main changes stated in the document are:

• inclusion of blasting as one of the vibration sources covered by the document
• a new Annex C with exposure-response relationships for community annoyance, including railway-, construction- and blast-induced vibration

Which standards are used with ISO 2631-2:2026?

ISO 2631-2:2026 has two normative references:

• ISO 2631-1 - provides the general requirements for human exposure to whole-body vibration, including methods used in Clause 4
• ISO 8041-1 - provides the requirements for general-purpose vibration meters and instrumentation tolerances

Other standards named in the document contribute specific related material:

• ISO 4866 - covers vibration of fixed structures and structural-damage evaluation
• ISO/TS 15666:2021 - provides the annoyance-response scales used in Annex C
• IEC 61260-1:2014 - provides the fractional-octave-band filter basis referenced in Annex A
• BS 6472-2 and BS 6472 - are cited for blast-induced vibration and building-vibration guidance
• DIN 4150-2 - is cited in Annex C for an alternative weighting approach
• NS 8141 - is cited for additional information on blast vibration response

What does the ISO 2631-2:2026 document contain?

ISO 2631-2:2026 contains a short core method in Clause 4, a human-response overview in Clause 5, and three annexes that support practical assessment. Annex A provides the transfer-function definition and one-third-octave-band weighting values for Wm, including a figure and table.

Annex B gives guidance on what to record when collecting data on human response, including source timing, exposure time, vibration character, and associated effects such as structure-borne noise, airborne noise, rattling, and visual effects. Annex C collects exposure-response curves, figures, tables, and polynomial approximations for railway, construction, and blasting cases, so users can estimate likely annoyance for groups of exposed people.

International
Standard
ISO 2631-2
Third edition
Mechanical vibration and shock —
2026-06
Evaluation of human exposure to
whole-body vibration —
Part 2:
Vibration in buildings (1 Hz to 80
Hz)
Vibrations et chocs mécaniques — Évaluation de l'exposition des
individus à des vibrations globales du corps —
Partie 2: Vibrations dans les bâtiments (1 Hz à 80 Hz)
Reference number
© ISO 2026
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Measurement of building vibration . 2
4.1 General .2
4.2 Direction of measurement .3
4.3 Location of measurement .3
4.4 Frequency weighting.3
4.5 Evaluation of vibration .3
4.5.1 Vibration measurement .3
4.5.2 Categories of source .3
4.6 Measuring instrumentation .4
5 Human responses to building vibration . 4
Annex A (normative) Mathematical definition of the frequency weighting, .
Annex B (informative) Guidelines for collecting data concerning human response to building
vibration . 8
Annex C (informative) Exposure-response relationships for the estimation of annoyance inside
buildings .11
Bibliography .20

iii
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,
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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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
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Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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 www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and condition
monitoring, Subcommittee SC 4, Human exposure to mechanical vibration and shock.
This third edition cancels and replaces the second edition (ISO 2631-2:2003), which has been technically
revised.
The main changes are as follows:
— inclusion of blasting as one of the sources of vibration being considered as part of this document;
— inclusion of a new Annex C presenting some exposure-response relationships representing estimates of
community annoyance applicable for sources of vibration including railway-, construction- and blast-
induced vibration.
A list of all parts in the ISO 2631 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Introduction
Structural vibration to which human beings are exposed in buildings can be detected by the occupants and
[1][2]
can affect them in many ways. More particularly, their comfort and quality of life can be reduced .
For the evaluation of vibration in buildings with respect to comfort and annoyance, frequency weighted
values of the vibration are preferred, except when blasting is involved. The values obtained characterize the
place or site within the building where people may be present, by giving an indication of the suitability of
that place.
This document is intended to encourage the uniform collection of data on human response to building
vibration.
v
International Standard ISO 2631-2:2026(en)
Mechanical vibration and shock — Evaluation of human
exposure to whole-body vibration —
Part 2:
Vibration in buildings (1 Hz to 80 Hz)
1 Scope
This document concerns human exposure to whole-body vibration and shock in buildings with respect to
the comfort and annoyance of the occupants based on both measurements and simulations. It specifies a
method for measurement and evaluation, comprising the determination of the measurement direction and
measurement location. It defines the frequency weighting, W , which is applicable in the frequency range
m
1 Hz to 80 Hz where the posture of an occupant does not need to be defined, see Annex A.
NOTE 1 The frequency weightings given in ISO 2631-1 can be used if the posture of the occupant is defined.
Whilst it is often the case that a building will be available for experimental investigation, many of the
concepts contained within this document would apply equally to a building in the design process or where
it will not be possible to gain access to an existing building. In these cases, reliance will have to be placed on
the prediction of the building response by some means.
This document does not provide guidance on the likelihood of structural damage, which is discussed in
[3]
ISO 4866 . Further, it is not applicable to the evaluation of effects on human health and safety.
Acceptable magnitudes of vibration are not stated in this document, but guidance is provided in Annex C
in the form of exposure-response curves for the estimation of annoyance when vibration originates from
various sources, including railway, construction activities and blasting.
NOTE 2 The exposure-response curves are based on the most recent evidence which suggests that human response
to vibration in buildings is dependent on the magnitude, frequency, duration and temporal characteristics of the
[4]
vibration . In addition, it is known that other factors not directly related to the vibration characteristics have a
significant influence on the annoyance response. These are identified in Annex B and include consideration of some
parallel effects, subjective impressions and socio-demographic factors which need to be accounted for when collecting
vibration data.
NOTE 3 Several national standards have been proposed to define methods for assessing exposure to vibration in
buildings as well as reference values for judging the annoyance resulting from exposure. These standards generally
present significant differences in terms of metrics and methods used to quantify exposure as well as on the guideline
values to prevent adverse effects. Some standards define limit values that are based on experimental field data leading
to exposure-response relationships such as those proposed in Annex C. Other standards base their limit values on
estimations that take into account vibration perception thresholds and situational factors. Some standards also
consider the magnitude of vibration that can present a risk of damage to the buildings, particularly when blasting is
involved.
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 2631-1, Mechanical vibration and shock — Evaluation of human exposure to whole-body 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 following terms and definitions apply.
ISO and IEC maintain terminology 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
evaluation
range of activities which includes survey, measurement, processing, ordering, characterization, rating,
response simulation and presentation of relevant data
3.2
building
civil engineering structure used for habitation or allocated to any other human activity, including offices,
factories, hospitals, schools, day-care centres
3.3
work time
period of activity, or working hours, of the vibration source defined by the daily start and finish times
3.4
exposure time
period during which exposure to the vibration occurs
3.5
peak particle velocity
PPV
maximum value of the velocity associated with the motion of a particle at a point in the ground or on the
structure being considered and determined from the measured unweighted velocity time signal during an
event
3.6
running rms velocity
root-mean-square of velocity data calculated over a specified time window, tracking the signal's energy
fluctuation over successive periods equivalent to the length of the time window
Note 1 to entry: The time constant refers to the speed of response of the signal. It can either be slow (1 s) or fast
(0,125 s).
Note 2 to entry: The maximum running rms velocity represents the highest magnitude from values measured over
successive periods equivalent to the time window.
4 Measurement of building vibration
4.1 General
The general requirements for signal conditioning and the duration of measurement as specified in ISO 2631-1
shall be followed.
4.2 Direction of measurement
The vibration shall be measured in all three orthogonal directions simultaneously. For this purpose, the
directions of vibration are related to the building structure rather than to the human body. The orientations
of the building structure-related x-, y- and z-axes shall be those for a standing person as given in ISO 2631-1 .
4.3 Location of measurement
The evaluation with respect to human response shall be based solely on the expected occupation, the tasks
performed by the occupants, and the expected freedom from disturbance. Each relevant place or room shall
be assessed with respect to these criteria. The vibration to be reported shall be measured at that location in
the room where the highest magnitude of the weighted vibration is expected, or as specifically directed for
the source concerned, on a suitable surface of the building structure or on a rigid surface near the foundation
when the vibration originates from blasting.
NOTE Although the highest magnitude of vibration is often expected to occur at the centre of the room,
measurements at several locations in the building are encouraged to determine the local variation of the vibration.
4.4 Frequency weighting
The vibration measured inside the building at the relevant location and in the three directions according
to 4.2 and 4.3 shall be frequency weighted. This document (as well as ISO 2631-1) uses frequency-weighted
root-mean-square acceleration and vibration dose value to express the exposure to vibration originating
from sources such as railway, traffic and construction activities.
The frequency weighting, , according to Annex A shall be used irrespectively of the measurement
direction.
NOTE The frequency weightings given in ISO 2631-1 can be used if the posture of the occupant is defined.
Annex A gives the exact definition of the frequency weighting, . The values given in Table A.1, applicable
to vibration acceleration as the input quantity, are calculated using the true one-third-octave band mid-
frequencies and include the band limitation between 1 Hz and 80 Hz. Figure A.1 shows the frequency
weighting, , in a graphical way.
Vibration originating from blasting and measured near the foundation of the building does not require to be
[5]
frequency weighted, see BS 6472-2 .
4.5 Evaluation of vibration
4.5.1 Vibration measurement
Vibration values measured inside the building shall be determined by application of the methods given in
ISO 2631-1. The vibration axis with the highest frequency-weighted vibration magnitude expressed as rms
acceleration and/or vibration dose value shall be identified, and values obtained in this direction used for
the evaluation.
For vibration originating from blasting operations, the measurements shall be carried out in the ground
near the foundations of the building on a hard surface or on the building. The unweighted peak particle
velocity (PPV) should be measured in three perpendicular directions and, only the dominant directional
component retained to assess the exposure.
In order to allow different kinds of future evaluation, it is recommended, wherever practicable, to use a
measurement technique which records vibration time histories unweighted at least within the frequency
range 1 Hz to 80 Hz.
4.5.2 Categories of source
For an evaluation, it is useful to categorize the vibration according to the major types of source which have
been found in practice to give rise to adverse comments. Different magnitudes of vibration may be acceptable

for the different categories. To establish international consistency of approach, the following categories are
defined:
a) permanent continuous processes, e.g. industry;
b) permanent intermittent activities, e.g. traffic, railway;
c) temporary (non-permanent) activities, e.g. construction;
d) isolated events, e.g. blasting.
The categories have been selected to reflect the human perception of different vibration sources. They are
not intended to be exclusive but to give guidance for the application of this document.
4.6 Measuring instrumentation
The requirements for measuring instrumentation, including tolerances, as given in ISO 8041-1 shall be
followed.
5 Human responses to building vibration
Experience from various countries has shown that occupants of residential buildings can express adverse
comments regarding building vibration when the vibration magnitudes slightly exceed the perception
levels (see ISO 2631-1 for the definition of perception levels). Complaints can also arise due to parallel
secondary effects associated with vibration, such as re-radiated noise (see Annex B). In general, satisfactory
magnitudes are likely to be related to general expectations and to economic, social and environmental
factors. They are not determined by short-term health hazards. This is due to very low magnitudes of typical
building vibration relative to those which can cause health effects. Only in extremely rare cases should it be
necessary to refer to the criterion “health” as given in ISO 2631-1.
Tolerance to higher magnitudes of building vibration could arise in situations involving temporary
disturbances and isolated events such as during construction projects or blasting. Any startle factor can be
reduced by a proper public relations program which can include announcements or the emission of warning
signals prior to the vibration events. When vibration occurs over an extended period of time, long-term
familiarization can lead to tolerance of higher magnitudes of building vibration, thus to the perception of a
lower degree of annoyance.
Annex A
(normative)
Mathematical definition of the frequency weighting,
The frequencies, , (i = 1 to 3) are parameters of the transfer function determining the overall frequency
weighting, . The transfer function, , is expressed as the product of three factors [high-pass filter,
, low-pass filter, , and pure weighting function, ], as follows, where π and π :
Band limiting (filter with second-order Butterworth characteristic; and are the corner frequencies):
a) High pass
(A.1)
(A.2)
where
b) Low pass
(A.3)
(A.4)
where
Pure frequency weighting (for acceleration as the input quantity):
(A.5)
(A.6)
where
π
The transfer function, , of the band-limited frequency weighting, , is given by the product of the
high-pass filter, , the low-pass filter, , and the pure weighting function, :
(A.7)
NOTE In the most common interpretation of Formula (A.7) (in the frequency domain) it describes the modulus
(magnitude) and phase in the form of a complex number as a function of the imaginary angular frequency π .
Sometimes the symbol is used instead of p. Alternatively p can be interpreted as the variable of the Laplace transform.
The modulus (magnitude), , is shown in a graphical way in Figure A.1 for illustration.

Values of the frequency weighting, , in one-third-octave bands, calculated using the true mid-frequencies,
frequency band limitation 1 Hz to 80 Hz included, are given in Table A.1 for acceleration as the input quantity.
Key
X frequency, in Hz
Y frequency weighting, in dB
Figure A.1 — Frequency weighting, , with acceleration as the input quantity
Table A.1 — Values of the frequency weighting, , for acceleration as the input quantity (in one-
third-octave bands, calculated using the true mid-frequencies, band limitation 1 Hz to 80 Hz
included)
Frequency
Hz
Nominal True Factor dB
-10 0,1 0,1 0,015 8 -36,00
-9 0,125 0,125 9 0,025 1 -32,00
-8 0,16 0,158 5 0,039 8 -28,01
-7 0,2 0,199 5 0,062 9 -24,02
-6 0,25 0,251 2 0,099 4 -20,05
-5 0,315 0,316 2 0,156 -16,12
-4 0,4 0,398 1 0,243 -12,29
-3 0,5 0,501 2 0,368 -8,67
-2 0,63 0,631 0 0,530 -5,51
-1 0,8 0,794 3 0,700 -3,09
0 1 1,000 0,833 -1,59
1 1,25 1,259 0,907 -0,85
[6]
is the frequency band number according to IEC 61260-1:2014 .

TTabablele A A.11 ((ccoonnttiinnueuedd))
Frequency
Hz
Nominal True Factor dB
2 1,6 1,585 0,934 -0,59
3 2 1,995 0,932 -0,61
4 2,5 2,512 0,910 -0,82
5 3,15 3,162 0,872 -1,19
6 4 3,981 0,818 -1,74
7 5 5,012 0,750 -2,50
8 6,3 6,310 0,669 -3,49
9 8 7,943 0,582 -4,70
10 10 10,00 0,494 -6,12
11 12,5 12,59 0,411 -7,71
12 16 15,85 0,337 -9,44
13 20 19,95 0,274 -11,25
14 25 25,12 0,220 -13,14
15 31,5 31,62 0,176 -15,09
16 40 39,81 0,140 -17,10
17 50 50,12 0,109 -19,23
18 63 63,10 0,083 4 -21,58
19 80 79,43 0,060 4 -24,38
20 100 100,0 0,040 1 -27,93
21 125 125,9 0,024 1 -32,37
22 160 158,5 0,013 3 -37,55
23 200 199,5 0,006 94 -43,18
24 250 251,2 0,003 54 -49,02
25 315 316,2 0,001 79 -54,95
26 400 398,1 0,000 899 -60,92
[6]
is the frequency band number according to IEC 61260-1:2014 .

Annex B
(informative)
Guidelines for collecting data concerning human response to building
vibration
B.1 Overview
The basic human response to vibration in buildings is adverse comment. The main body of this document
concerns the measurement and the evaluation of whole-body vibration. This annex is intended to encourage
users to collect data taking into consideration all of those parameters that affect human beings in buildings
and which give rise to complaints.
[7][8][9]
Human response to vibration in buildings is very complex . In many circumstances the degree of
annoyance and complaint cannot be explained directly by the magnitude of monitored vibration alone.
Under some conditions of amplitude and frequency of vibration, claims may arise while measured whole-
body vibration is lower than the perception level.
Analysis of these complaints shows that other parameters related to the vibration source (e.g. work time )
or produced by the vibration in the exposure area (e.g. re-radiated noise) may also give an explanation of the
complaints.
Measured vibration parameters, complemented by the evaluation of these phenomena, allow better
quantification of the degree of annoyance by vibration in buildings.
Vibration sources outside and inside buildings may generate whole-body vibration, together with the
associated phenomena of structure-borne noise, airborne noise, rattling, movement of furniture and other
objects, as well as visual effects (e.g. movement of hanging objects). To evaluate human complaints, all of
these effects should be considered.
The aim of collecting data for these associated phenomena is to facilitate the eventual definition of a more
general indicator of the annoyance due to vibration. This indicator may be used as the basis to update future
editions of this document.
B.2 Parameters to be considered
B.2.1 General
The following factors should be considered and recorded, where appropriate.
B.2.2 Parameters related to the source
The d
...