ISO 17420-6:2021 Respiratory protective devices — Performance requirements —Part 6: Special application escape - Filtering RPD and supplied breathable gas RPD

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Respiratory protective devices — Performance requirements —Part 6: Special application escape - Filtering RPD and supplied breathable gas RPD由ISO于2021-02发布，适用于全球。

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INTERNATIONAL STANDARD ISO 17420-6:2021(E)

Respiratory protective devices — Performance requirements —

Part 6: Special application escape - Filtering RPD and supplied breathable gas RPD

1 Scope

This document specifies the requirements for supplied breathable gas RPD and for filtering RPD to be used for special application escape for use in the workplace to protect the wearer.

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 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and conductivity

ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests

ISO 16900-1:2019, Respiratory protective devices — Methods of test and test equipment — Part 1: Determination of inward leakage

ISO 16900-4, Respiratory protective devices — Methods of test and test equipment — Part 4: Determination of gas filter capacity and migration, desorption and carbon monoxide dynamic testing

ISO 16900-5, Respiratory protective devices — Methods of test and test equipment — Part 5: Breathing machine, metabolic simulator, RPD headforms and torso, tools and verification tools

ISO 16900-6, Respiratory protective devices — Methods of test and test equipment — Part 6: Mechanical resistance/strength of components and connections

ISO 16900-8, Respiratory protective devices — Methods of test and test equipment — Part 8: Measurement of RPD air flow rates of assisted filtering RPD

ISO 16900-9, Respiratory protective devices — Methods of test and test equipment — Part 9: Determination of carbon dioxide content of the inhaled gas

ISO 16900-10, Respiratory protective devices — Methods of test and test equipment — Part 10: Resistance to ignition, flame, radiant heat and heat

ISO 16900-12, Respiratory protective devices — Methods of test and test equipment — Part 12: Determination of volume-averaged work of breathing and peak respiratory pressures

ISO 16972, Respiratory protective devices — Vocabulary and graphical symbols

ISO 17420-1:2021, Respiratory protective devices — Performance requirements — Part 1: General

ISO 17420-2:2021, Respiratory protective devices — Performance requirements — Part 2: Requirements for filtering RPD

ISO 17420-6:2021(E)

ISO 17420-4:2021, Respiratory protective devices — Performance requirements — Part 4: Requirements for supplied breathable gas RPD

ISO 23269-2:2011, Ships and marine technology — Breathing apparatus for ships — Part 2: Self-contained breathing apparatus for shipboard firefighters

IEC 60068-2-27:2010, Environmental testing — Part 2-27: Tests — Test Ea and guidance: Shock

IEC 60068-2-64:2009, Environmental testing — Part 2-64: Tests — Test Fh: Vibration, broadband random and guidance

IEC 60079-0, Explosive atmospheres — Part 0: Equipment — General requirements

IEC 60079-11, Explosive atmospheres — Part 11: Equipment protection by intrinsic safety “i”

IEC 60079-32-1:2013, Explosive atmospheres — Part 32-1: Electrostatics hazards — Guidance

IEC 60079-32-2:2015, Explosive atmospheres — Part 32-2: Electrostatics hazards — Tests

IEC 60721-1:2003, Classification of environmental conditions — Part 1: Environmental parameters and their severities

IEC 60721-3-2:2018, Classification of environmental conditions — Part 3-2: Classification of groups of environmental parameters and their severities — Transportation and Handling

IEC 61000-6-2, Electromagnetic compatibility (EMC) — Part 6-2: Generic standards — Immunity standard for industrial environments

EN 50303, Group 1, category M1 equipment intended to remain functional in atmospheres endangered by firedamp and/or coal dust

3 Terms, d efinitions and abbreviations

3.1 Terms and definiti ons

For the purposes of this document, the terms and definitions given in ISO 16972 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://w ww. iso. org/ obp

— IEC Electropedia: available at http://w ww.e lectropedia .org/ 3.1.1

non pre-conditioned state

without pre-conditioning but possibly modified to carry out tests or already used in non-destructive tests

Note 1 to entry: This includes e.g. cleaning and disinfection.

3.1.2

RPD in as worn state

RPD where all components are connected and assembled in the way that it is intended to be used (e.g. worn by the wearer, adapted to an RPD headform or RPD headform and torso or suitable holder).

Note 1 to entry: All of the various components (e.g. for an assisted filtering RPD: blower unit, battery, RI, filters, etc.) have been completely assembled and then connected (RI connected to the hose of the blower unit) together in accordance with the information supplied by the manufacturer.

3.1.3

component in ready for assembly state

component with seals, plugs, packaging or other environmental protective means, still in place

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