Sets out the requirements for three types of protective helmets reflecting their intended use. It deals with construction of the helmet shell and helmet finish and includes methods of tests. Specific additional performance requirements are given for occupational protective helmets used in high temperature workplaces and for bushfire fighters’ helmets based on industrial helmets.
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 OBJECTIVE
1.3 CLASSIFICATION
1.4 REFERENCED DOCUMENTS
1.5 DEFINITIONS
1.6 NOMINAL VALUES AND TOLERANCES
1.7 INTERPRETATION OF SPECIFIED LIMITING VALUES
2 MATERIALS
2.1 SHELL MATERIAL
2.2 HEADBAND AND CRADLE MATERIALS
2.2.1 General
2.2.2 Optional requirement for dusty work environments
3 DESIGN AND CONSTRUCTION
3.1 GENERAL
3.2 SHELL
3.2.1 Shell construction
3.2.2 Brim
3.2.3 Shell conspicuity
3.2.4 Shell conspicuity for special purposes
3.2.5 Retroreflective material
3.3 RETENTION SYSTEM
3.3.1 General
3.3.2 Cradle
3.3.3 Headband
3.3.4 Nape strap
3.3.5 Retaining strap for special purpose helmets
3.4 HELMET ACCESSORIES
3.4.1 General
3.4.2 Lamp bracket and cable clip
3.4.3 Retaining strap
3.4.4 Earmuffs and means of attachment
3.4.5 Eye and face protection (and means of attachment)
3.4.6 Ear and neck protection
3.4.7 Additional personal protective devices
3.5 DIMENSIONS
3.5.1 Vertical clearance
3.5.2 Wearing height
3.5.3 External vertical distance
3.5.4 Lateral clearance
3.6 VENTILATION
3.6.1 General
3.6.2 Shell vent
3.7 HELMET MASS
4 PERFORMANCE TESTING
4.1 GENERAL
4.2 APPLICATION OF TESTS
4.3 CONDITIONING
4.4 ELECTRICAL RESISTANCE TEST
4.5 STIFFNESS TEST
4.6 SHOCK ABSORPTION TEST
4.7 RESISTANCE TO PENETRATION
4.8 THERMAL PERFORMANCE
4.8.1 Application of fire hazard assessment
4.8.2 Resistance to ignition of helmet shell
4.9 ADDITIONAL THERMAL REQUIREMENTS
4.9.1 Prolonged high temperature stability
4.9.2 Helmet shell material thermal performance
4.9.3 Helmets intended for use in extreme high radiant heat environments
4.9.4 Resistance to ignition or ear and neck protectors
4.10 HIGH RETAINING STRAP STRENGTH
4.11 RETAINING STRAP STRENGTH WITH SPECIFIED BREAKPOINT
