EN ISO 16972:2020

SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 132:1999
Oprema za varovanje dihal - Slovar in grafični simboli (ISO 16972:2020)
Respiratory protective devices - Vocabulary and graphical symbols (ISO 16972:2020)
Atemschutzgeräte - Begriffe und graphische Symbole (ISO 16972:2020)
Appareils de protection respiratoire - Vocabulaire et symboles graphiques (ISO
16972:2020)
Ta slovenski standard je istoveten z: EN ISO 16972:2020
ICS:
01.040.13 Okolje. Varovanje zdravja. Environment. Health
Varnost (Slovarji) protection. Safety
(Vocabularies)
13.340.30 Varovalne dihalne naprave Respiratory protective
devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 16972
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 01.040.13; 13.340.30
English Version
Respiratory protective devices - Vocabulary and graphical
symbols(ISO 16972:2020)
Appareils de protection respiratoire - Vocabulaire et Atemschutzgeräte - Begriffe und graphische Symbole
symboles graphiques (ISO 16972:2020) (ISO 16972:2020)
This European Standard was approved by CEN on 23 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 16972:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 16972:2020) has been prepared by Technical Committee ISO/TC 94 "Personal
safety -- Personal protective equipment" in collaboration with Technical Committee CEN/TC 79
“Respiratory protective devices” the secretariat of which is held by DIN.
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 132:1998.
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 16972:2020 has been approved by CEN as EN ISO 16972:2020 without any modification.

INTERNATIONAL ISO
STANDARD 16972
Second edition
2020-03
Respiratory protective devices —
Vocabulary and graphical symbols
Appareils de protection respiratoire — Vocabulaire et symboles
graphiques
Reference number
ISO 16972:2020(E)
©
ISO 2020
ISO 16972:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 16972:2020(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms related to respiratory protective devices . 1
4 Terms related to human factors .25
5 Graphical symbols for use on respiratory protective devices .31
Bibliography .32
Index .33
ISO 16972:2020(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 94, Personal safety — Personal protective
equipment, Subcommittee SC 15, Respiratory protective devices, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 79, Respiratory protective devices,
in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 16972:2010), which has been technically
revised. The main changes compared with the previous edition are as follows:
— the terms used in the field of respiratory protective devices (RPD) have been updated;
— Clause 5, “Units of measurement”, has been deleted;
— Annex A, “Terms and definitions referring to respiratory protective devices in current national
standards, regulations or other national contexts”, has been deleted;
— Annex B, “Abbreviations used”, has been deleted.
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

INTERNATIONAL STANDARD ISO 16972:2020(E)
Respiratory protective devices — Vocabulary and
graphical symbols
1 Scope
This document defines terms and specifies units of measurement for respiratory protective devices
(RPDs), excluding diving apparatus. It indicates graphical symbols that can be required on RPDs, parts
of RPD or instruction manuals in order to instruct the person(s) using the RPD as to its operation.
NOTE Terms and definitions for diving apparatus are given in EN 250.
2 Normative references
There are no normative references in this document.
3 Terms related to respiratory protective devices
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
abrasive blasting respiratory protective device
breathing apparatus (3.32) incorporating a protective hood (3.115) or a blouse (3.23) fitted with an
impact resistant (3.119) visor (3.252)
Note 1 to entry: Breathable air (3.28) is supplied to the wearer (3.257) from a source of air not carried by the wearer.
3.2
accessory
item, or items, that are attached to the respiratory protective device (RPD) (3.203) that are not necessary
for the RPD to meet the requirements of the RPD performance standard and do not compromise its
protection
3.3
adequacy assessment
selection method identifying the respiratory protective device (3.203) is able to reduce the wearer's
(3.257) inhalation exposure to acceptable levels
3.4
adequate respiratory protective device
adequate RPD
RPD (3.203) capable of reducing the inhalation exposure to an acceptable level
3.5
aerodynamic diameter
diameter of a unit density sphere having the same settling velocity as the particle (3.170) in question
3.6
aerosol
suspension of solid, liquid, or solid and liquid particles (3.170) in a gaseous medium, having a negligible
falling velocity (generally considered to be less than 0,25 m/s)
ISO 16972:2020(E)
3.7
aerosol penetration
ability of particles (3.170) to pass through a particle-filtering material
3.8
air flow resistance
pressure difference between upstream and downstream locations caused by the flow of air through
the parts and components of a respiratory protective device (3.203) such as an exhalation valve (3.79),
inhalation valve (3.120), filter(s) (3.86), and tube (3.245), etc.
3.9
air supply hose
fresh air supply hose
hose (3.116) for the supply of air at about atmospheric pressure
3.10
ambient air bypass
means to enable the wearer (3.257) to breathe the ambient atmosphere (3.12) before entering and after
leaving a hazardous atmosphere (3.108)
3.11
ambient air system
device used to deliver ambient air at a low pressure (3.134) directly to a breathable gas (3.29) respiratory
protective device (3.203) (manually or power assisted)
3.12
ambient atmosphere
air surrounding the wearer (3.257)
3.13
ambient concentration
concentration of a compound in the air surrounding the wearer (3.257)
3.14
ambient laboratory conditions
atmosphere where the temperature is between 16 °C and 32 °C and the relative humidity is between
20 % and 80 %
3.15
apertometer
extended hemispherical dome for measuring the angular area of the field of vision (3.85) [peripheral
isopter (3.176)] of a respiratory protective device (3.203) when mounted on a respiratory protective
device headform (3.204)
3.16
as received
not preconditioned or modified to carry out a test
3.17
assigned protection factor
APF
anticipated level of respiratory protection that would be provided by a properly functioning respiratory
protective device (RPD) (3.203) or class of RPD within an effective RPD programme (3.207)
3.18
assisted filtering respiratory protective device
assisted filtering RPD
filtering RPD (3.90) where breathable gas (3.29) is actively supplied to the wearer (3.257) by the
RPD (3.203)
2 © ISO 2020 – All rights reserved

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