ISO/TS 16976-8:2013

Respiratory protective devices — Human factors — Part 8: Ergonomic factors

Respiratory protective devices — Human factors — Part 8: Ergonomic factors

General Information

• Status: Published
• Technical Committee: COVID 19 - COVID 19 - ISO
• Directive: standardi COVID-19 - UPDATE ON THE AVAILABILITY OF CEN, CENELEC, ISO, IEC STANDARDS AND THEIR NATIONAL ADOPTIONS IN RESPONSE TO THE COVID-19 OUTBREAK

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TECHNICAL ISO/TS
SPECIFICATION 16976-8
First edition
2013-06-01
Respiratory protective devices —
Human factors —
Part 8:
Ergonomic factors
Appareils de protection respiratoire — Facteurs humains —
Partie 8: Facteurs ergonomiques
Reference number
©
ISO 2013
Posebna objava SIST z dovoljenjem CEN, CENELEC, ISO in IEC: Za potrebe zagotavljanja brezplačnega dostopa do vsebin standardov v času epidemije COVID-19.
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© ISO 2013
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Published in Switzerland
ii © ISO 2013 – All rights reserved

Posebna objava SIST z dovoljenjem CEN, CENELEC, ISO in IEC: Za potrebe zagotavljanja brezplačnega dostopa do vsebin standardov v času epidemije COVID-19.
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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Ergonomic factors . 1
4.1 General . 1
4.2 Integration of performance and ergonomic requirements . 1
4.3 Factors to be considered in the determination of the best ergonomic solution . 2
4.4 Factors to be considered in specifying requirements for the adjustability of RPD and its
appropriate fixation to the body . 4
4.5 Factors to be considered in specifying requirements to ensure that RPD does not irritate
or cause discomfort . 4
4.6 Factors to be considered in specifying requirements to take into account the
anthropometric factors of RPD . 4
4.7 Factors to be considered in specifying requirements to take into account the
biomechanical factors of RPD . 5
4.8 Factors to be considered in specifying requirements to take into account the thermal
effects of RPD. 6
4.9 Factors to be considered in specifying requirements to take into account the sensory
effects of RPD. 7
5 Verification procedure for compliance with ergonomic factors . 7
5.1 General approach . 7
5.2 Selecting an appropriate type of test . 8
5.3 Assessment of the anthropometric factors of RPD and their impact on the wearer . 9
5.4 Assessment of the biomechanical factors of RPD and their impact on the wearer . 9
5.5 Assessment of the thermal effects of RPD and their impact on the wearer .10
5.6 Assessment of the sensory factors of RPD and their impact on the wearer .10
Annex A (informative) Ergonomic assessment of RPD using panels of test subjects .13
Bibliography .16
Posebna objava SIST z dovoljenjem CEN, CENELEC, ISO in IEC: Za potrebe zagotavljanja brezplačnega dostopa do vsebin standardov v času epidemije COVID-19.
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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. 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. 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.
The committee responsible for this document is ISO/TC 94, Personal safety — Protective clothing and
equipment, SC15, Respiratory protective devices.
ISO/TS 16976 consists of the following parts:
— Part 1: Metabolic rates and respiratory flow rates
— Part 2: Anthropometrics
— Part 3: Physiological responses and limitations of oxygen and limitations of carbon dioxide in the
breathing environment
— Part 4: Work of breathing and breathing resistance: Physiologically based limits
The following parts are under preparation:
— Part 5: Thermal effects
— Part 6: Psycho-physiological effects
— Part 7: Hearing and speech
iv © ISO 2013 – All rights reserved

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Introduction
This part of ISO/TS 16976 provides guidance for the writers of respiratory protective devices (RPD)
performance standards on the specification of ergonomic factors.
Ergonomics involves the application of scientific methods and appropriate data to the design and
specification of machines, equipment, environments, systems and the interface with the people using
it. The successful use of ergonomics in designing RPD will enhance the acceptability of the RPD and
through this will improve the safety, health, performance and effectiveness of the wearer.
RPD is used in situations where a risk to health or safety has been identified. The preferred solution is to
reduce the risk to zero and thereby to remove the need for RPD. If this is not possible, the threat should be
reduced so that practical RPD can minimize the risk to wearer exposed to that hazard. In some working
conditions some RPD may be more comfortable than none and not to be considered as an additional
discomfort. Side effects of using RPD can range from discomfort to severe constraint and physical load.
The application of ergonomic principles to RPD allows optimization of the balance between protection
and usability.
Some aspects of the design and specification of RPD require specialist knowledge of the particular job
the RPD is used for and of the particular hazard against which the RPD is to be effective or particular
ergonomics issues. Although this part of ISO/TS 16976 covers many aspects, the writers of performance
standards should be aware that it cannot be expected to identify all the existing and possible future
problem points for which ergonomic factors and test methods will be required in performance standards.
It will remain the responsibility of the relevant experts to identify and quantify the hazards in the work
place and to foresee the potential ergonomic problems, and thus to ensure that the RPD specified and
manufactured is fit for the purposes intended in all respects.
For practical reasons, this part of ISO/TS 16976 presents ergonomics factors separately. However, it
should be recognized that the overall acceptability of a RPD will be determined by a combination of
these and other factors by the individual wearer.
Together with ISO/TS 16976 Parts 1 to 7, this part of ISO/TS 16976 provides basic human factor data.
Posebna objava SIST z dovoljenjem CEN, CENELEC, ISO in IEC: Za potrebe zagotavljanja brezplačnega dostopa do vsebin standardov v času epidemije COVID-19.
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Posebna objava SIST z dovoljenjem CEN, CENELEC, ISO in IEC: Za potrebe zagotavljanja brezplačnega dostopa do vsebin standardov v času epidemije COVID-19.
Samo za branje. Kopiranje in posredovanje prepovedano. © SIST 2020-04-10
TECHNICAL SPECIFICATION ISO/TS 16976-8:2013(E)
Respiratory protective devices — Human factors —
Part 8:
Ergonomic factors
1 Scope
ISO/TS 16976 provides information on factors related to human physiology, ergonomics and performance
for the preparation of standards for performance requirements, testing and use of respiratory protective
devices (RPD).
This part of ISO/TS 16976 gives guidance on the generic ergonomic factors related to RPD.
It specifies for the writers of RPD performance standards principles relating to:
— the biomechanical interaction between RPD and the human body;
— the interaction between RPD and the human senses: vision, hearing, smell, taste and skin contact.
This part of ISO/TS 16976 does not cover requirements related to specific hazards for which RPD
are designed.
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 16972, Respiratory protective devices — Terms, definitions, graphical symbols and units of measurement
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16972 apply.
4 Ergonomic factors
4.1 General
Harmonized performance standards for RPD should contain ergonomic requirements and test methods,
or should make normative reference to other standards to be applied.
Usually, ergonomic assessments of RPD have to be made while people are wearing them or are connected
to the external component of the system. Wherever possible, the assessments should be objective,
although some aspects can only be assessed subjectively.
Examples of how to make assessments are given in Annex A.
4.2 Integration of performance and ergonomic requirements
The primary purpose of RPD is to provide protection against specific inhalation hazards that cannot
be eliminated or adequately reduced by other means. Performance standards should therefore contain
performance requirements and test methods to ensure that the products fulfilling the performance
Posebna objava SIST z dovoljenjem CEN, CENELEC, ISO in IEC: Za potrebe zagotavljanja brezplačnega dostopa do vsebin standardov v času epidemije COVID-19.
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