AS/NZS 17420.1:2022 adopts and modifies ISO 17420 1:2021 which specifies general requirements for the performance and testing of respiratory protective devices (RPD) in accordance with their classification and for use in the workplace to protect the wearer from hazardous atmospheres and/or environments.
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviated terms
4 Classification overview
4.1 General
5 General requirements for RPD
5.1 General
5.2 Field of vision
5.3 Resistance to flame – Single burner dynamic
5.4 Compatibility with additional equipment
5.5 Monitor performance
5.6 Warning and checking device(s)
5.6.1 Performance of warning device(s)
5.6.2 Performance of checking device(s)
5.7 Protection class determination
5.7.1 General
5.7.2 Total inward leakage (TIL)
5.8 Validation by practical performance
5.8.1 General
5.8.2 Donning/doffing
5.8.3 Communication performance – hearing and speech
5.8.4 Eye irritation caused by the RPD
5.8.5 Fogging of visor
5.8.6 Ergonomic requirements
5.9 Requirements for elements/components
5.9.1 RI
5.9.1.1 RI Class a
5.9.1.2 Visual clarity
5.9.1.3 Sight defect correction
5.9.1.4 Strength of visor
6 Testing
6.1 General
6.2 Inspection
6.3 Testing of leak tightness of RI class a using negative pressure
