SIST EN ISO 80000-8:2020

Quantities and units - Part 8: Acoustics (ISO 80000-8:2020)

EN-ISO 80000-8 gives names, symbols, definitions and units for quantities of acoustics. Where appropriate, conversion factors are also given.

Größen und Einheiten - Teil 8: Akustik (ISO 80000-8:2020)

Dieses Dokument enthält Namen, Zeichen, Definitionen und Einheiten für Größen der Akustik. Wo benötigt, sind auch Umrechnungsfaktoren aufgeführt.

Grandeurs et unités - Partie 8: Acoustique (ISO 80000-8:2020)

Le présent document donne les noms, les symboles, les définitions et les unités des grandeurs d'acoustique. Des facteurs de conversion sont également indiqués, s'il y a lieu.

Veličine in enote - 8. del: Akustika (ISO 80000-8:2020)

General Information

• Status: Published In Translation
• Public Enquiry End Date: 29-Oct-2017
• Publication Date: 07-Apr-2020
• ICS: 01.060 - Quantities and units
• ICS: 17.140.01 - Acoustic measurements and noise abatement in general
• Technical Committee: TRS - Technical drawings, quantities, units, symbols and graphical symbols
• Current Stage: 6100 - Translation of adopted SIST standards (Adopted Project)
• Start Date: 11-Jan-2023
• Due Date: 10-Jan-2024
• Directive: TP188 - Odredba o merskih enotah
• Ref Project: EN ISO 80000-8:2020 - Quantities and units - Part 8: Acoustics (ISO 80000-8:2020)

Relations

• Replaces: SIST ISO 80000-8:2012 - Quantities and units - Part 8: Acoustics
• Effective Date: 01-May-2020
• Replaces: SIST EN ISO 80000-8:2007 - Quantities and units - Part 8: Acoustics (ISO 80000-8:2007)
• Effective Date: 01-May-2020

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 80000-8:2020
01-maj-2020
Nadomešča:
SIST EN ISO 80000-8:2007
SIST ISO 80000-8:2012
Veličine in enote - 8. del: Akustika (ISO 80000-8:2020)
Quantities and units - Part 8: Acoustics (ISO 80000-8:2020)
Größen und Einheiten - Teil 8: Akustik (ISO 80000-8:2020)
Grandeurs et unités - Partie 8: Acoustique (ISO 80000-8:2020)
Ta slovenski standard je istoveten z: EN ISO 80000-8:2020
ICS:
01.060 Veličine in enote Quantities and units
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
SIST EN ISO 80000-8:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 80000-8:2020

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SIST EN ISO 80000-8:2020


EN ISO 80000-8
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2020
EUROPÄISCHE NORM
ICS 01.060 Supersedes EN ISO 80000-8:2007
English Version

Quantities and units - Part 8: Acoustics (ISO 80000-
8:2020)
Grandeurs et unités - Partie 8: Acoustique (ISO 80000- Größen und Einheiten - Teil 8: Akustik (ISO 80000-
8:2020) 8:2020)
This European Standard was approved by CEN on 17 February 2020.

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, 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.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 80000-8:2020 E
worldwide for CEN national Members.

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SIST EN ISO 80000-8:2020
EN ISO 80000-8:2020 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 80000-8:2020
EN ISO 80000-8:2020 (E)
European foreword
This document (EN ISO 80000-8:2020) has been prepared by Technical Committee ISO/TC 12
"Quantities and units" in collaboration with Technical Committee CEN/SS F02 “Units and symbols” the
secretariat of which is held by CCMC.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2020, and conflicting national standards
shall be withdrawn at the latest by September 2020.
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.
This document supersedes EN ISO 80000-8:2007.
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, 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 the
United Kingdom.
Endorsement notice
The text of ISO 80000-8:2020 has been approved by CEN as EN ISO 80000-8:2020 without any
modification.

3

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SIST EN ISO 80000-8:2020

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SIST EN ISO 80000-8:2020
INTERNATIONAL ISO
STANDARD 80000-8
Second edition
2020-02
Quantities and units —
Part 8:
Acoustics
Grandeurs et unités —
Partie 8: Acoustique
Reference number
ISO 80000-8:2020(E)
©
ISO 2020

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SIST EN ISO 80000-8:2020
ISO 80000-8:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

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SIST EN ISO 80000-8:2020
ISO 80000-8:2020(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Remark on the use of the symbols lb and lg . 1
Bibliography . 8
Alphabetical index . 9
© ISO 2020 – All rights reserved iii

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SIST EN ISO 80000-8:2020
ISO 80000-8:2020(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 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 12, Quantities and units, in collaboration
with IEC/TC 25, Quantities and units.
This second edition cancels and replaces the first edition (ISO 80000-8:2007), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— the table giving the quantities and units has been simplified;
— some definitions and the remarks have been stated physically more precisely.
A list of all parts in the ISO 80000 and IEC 80000 series can be found on the ISO and IEC websites.
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 © ISO 2020 – All rights reserved

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SIST EN ISO 80000-8:2020
INTERNATIONAL STANDARD ISO 80000-8:2020(E)
Quantities and units —
Part 8:
Acoustics
1 Scope
This document gives names, symbols, definitions and units for quantities of acoustics. Where
appropriate, conversion factors are also given.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Names, symbols, definitions and units for quantities used in acoustics are given in Table 1.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
sound particle
material element
smallest element of the medium that represents the medium’s mean density
[SOURCE: ISO 18405:2017, 3.1.1.5, modified - Note 1 to entry deleted.]
4 Remark on the use of the symbols lb and lg
In accordance with ISO 80000-2, the abbreviations lb and lg are used to indicate logarithms to the base
2 (log ) and base 10 (log ), respectively.
2 10
© ISO 2020 – All rights reserved 1

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SIST EN ISO 80000-8:2020
ISO 80000-8:2020(E)

2 © ISO 2020 – All rights reserved
Table 1 — Quantities and units used in acoustics
Item No. Quantity Unit Remarks
Name Symbol Definition
8-1 logarithmic G quantity given by: oct One octave (oct) is the logarithmic frequency
frequency range range between f and f when
1 2
f f dec
   
2 2
  G==lb octdlg ec
    f
2
f f
   
=2 . Similarly, one decade (dec) is the
1 1
f
where f and f are two frequencies (ISO 80000-3)
1
1 2
logarithmic frequency range between f and f
1 2
when
f
2
=10 ; thus 1 dec = (lb 10) oct ≈ 3,322 oct.
f
1
ISO 266 specifies preferred frequencies for
acoustics separated by logarithmic frequency
ranges equal to one tenth of a decade (0,1 dec).
Each 0,1 dec logarithmic frequency range is
referred to in ISO 266 as a "one-third-octave
interval" because 0,1 dec is approximately equal
to 1/3 oct. Similarly, a logarithmic frequency
rang
...

SLOVENSKI STANDARD
oSIST prEN ISO 80000-8:2017
01-oktober-2017
9HOLþLQHLQHQRWHGHO$NXVWLND,62',6
Quantities and units - Part 8: Acoustics (ISO/DIS 80000-8:2017)
Größen und Einheiten - Teil 8: Akustik (ISO/DIS 80000-8:2017)
Grandeurs et unités - Partie 8: Acoustique (ISO/DIS 80000-8:2017)
Ta slovenski standard je istoveten z: prEN ISO 80000-8
ICS:
01.060 9HOLþLQHLQHQRWH Quantities and units
17.140.01 $NXVWLþQDPHUMHQMDLQ Acoustic measurements and
EODåHQMHKUXSDQDVSORãQR noise abatement in general
oSIST prEN ISO 80000-8:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 80000-8:2017

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oSIST prEN ISO 80000-8:2017
DRAFT INTERNATIONAL STANDARD
ISO/DIS 80000-8
ISO/TC 12 Secretariat: SIS
Voting begins on: Voting terminates on:
2017-07-14 2017-10-05
Quantities and units —
Part 8:
Acoustics
Grandeurs et unités —
Partie 8: Acoustique
ICS: 01.060
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
This draft is submitted to a parallel vote in ISO and in IEC.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 80000-8:2017(E)
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. ISO 2017

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oSIST prEN ISO 80000-8:2017
ISO/DIS 80000-8:2017(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. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

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oSIST prEN ISO 80000-8:2017
ISO/DIS 80000-8:2017(E)
Contents Page
Foreword . iv
1 Scope .1
2 Normative references .1
3 Quantities, units and definitions .1


© ISO 2017 – All rights reserved
iii

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oSIST prEN ISO 80000-8:2017
ISO/DIS 80000-8:2017(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 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:
www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 12, Quantities, units, symbols.
This second edition cancels and replaces the first edition (ISO 80000-8:2007).
ISO 80000 consists of the following parts, under the general title Quantities and units:
 Part 1: General
 Part 2: Mathematics
 Part 3: Space and time
 Part 4: Mechanics
 Part 5: Thermodynamics
 Part 7: Light and Radiation
 Part 8: Acoustics
 Part 9: Physical chemistry and molecular physics
 Part 10: Atomic and nuclear physics
 Part 11: Characteristic numbers
 Part 12: Condensed matter physics
IEC 80000 consists of the following parts, under the general title Quantities and units:
© ISO 2017 – All rights reserved
iv

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oSIST prEN ISO 80000-8:2017
ISO/DIS 80000-8:2017(E)
 Part 6: Electromagnetism
 Part 13: Information science and technology



© ISO 2017 – All rights reserved
v

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oSIST prEN ISO 80000-8:2017

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oSIST prEN ISO 80000-8:2017
DRAFT INTERNATIONAL STANDARD ISO/DIS 80000-8:2017(E)

1 Scope
ISO 80000-8 gives names, symbols and definitions for quantities and units of acoustics. Where
appropriate, conversion factors are also given.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 16, Acoustics — Standard tuning frequency (Standard musical pitch)
ISO 18405, Underwater Acoustics — Terminology
ISO 80000-3, Quantities and units — Part 3: Space and time
ISO 80000-4, Quantities and units — Part 4: Mechanics
IEC 60027-1, Letter symbols to be used in electrical technology — Part 1: General
IEC 61672-1, Electroacoustics — Sound level meters — Part 1: Specifications



© ISO 2017 – All rights reserved
1

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oSIST prEN ISO 80000-8:2017

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oSIST prEN ISO 80000-8:2017
DRAFT INTERNATIONAL STANDARD ISO/DIS 80000-8:2017(E)

3 Quantities, units and definitions
Quantity Unit
Item No. Remarks
Name Symbol Definition Symbol
8-1 logarithmic
𝑓 𝑓 𝑓
𝐺 oct
2 2 2
𝐺 = lb ( ) lb ( ) = log ( )
frequency interval 2
𝑓 𝑓 𝑓
(8-3)
1 1 1
where 𝑓 and 𝑓 are frequencies (ISO 80000-3) of two One octave (oct) is the logarithmic
1 2
tones frequency interval between 𝑓 and 𝑓
1 2
𝑓
2
when = 2.
𝑓
1
1 oct ≡ lb 2 = 1.

One decade (dec) is the logarithmic
frequency interval between 𝑓 and 𝑓
1 2
𝑓
2
when = 10.
𝑓
1
( )
1 dec ≡ lb 10 = lb 10 oct ≈
3,32 oct = 3,32.
8-2.1 static pressure 𝑝 pressure that would exist in the absence of sound waves Pa This definition applies to a medium with
s
...