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AS/NZS 1801:1997
[Pending Revision]Occupational protective helmets
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.
Published: 05/09/1997
Pages: 30
Table of contents
Cited references
Content history
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
5 MARKING
5.1 HELMET SHELLS
5.2 HARNESS
5.3 CHINSTRAPS
APPENDIX A
A1 SCOPE
A2 PRINCIPLE
A3 APPARATUS
A4 PROCEDURE
A5 REPORT
APPENDIX B
B1 SCOPE
B2 PRINCIPLE
B3 APPARATUS
B4 PROCEDURE
B5 REPORT
APPENDIX C
C1 SCOPE
C2 PRINCIPLE
C3 APPARATUS
C3.1 Headforms
C3.2 Striker
C4 METHODS OF MEASUREMENT OF TRANSMITTED FORCE
C4.1 Acceleration method
C4.2 Force method
C4.3 Data channel
C4.4 Instrumentation checks
C4.4.1 System calibration
C4.4.2 Electronic calibration
C5 TEST PROCEDURE
C6 REPORT
APPENDIX D
D1 SCOPE
D2 PRINCIPLE
D3 APPARATUS AND MOUNTING
D3.1 Headforms
D3.2 Striker
D4 PROCEDURE
D5 REPORT
APPENDIX E
E1 SCOPE
E2 PRINCIPLE
E3 APPARATUS
E4 TEST 1
E4.1 Preparation
E4.2 Procedure
E4.3 Report
E5 TEST 2
E5.1 Preparation
E5.2 Procedure
E5.3 Report
APPENDIX F
F1 SCOPE
F2 PRINCIPLE
F3 APPARATUS
F4 TEST 1
F4.1 Procedure
F4.2 Report
F5 TEST 2
F5.1 Procedure
F5.2 Report
APPENDIX G
G1 SCOPE
G2 PRINCIPLE
G3 APPARATUS
G4 PREPARATION FOR TEST
G5 APPLICATION OF IMPACT ENERGY
G6 PROCEDURE
G7 CRITERIA
Cited references in this standard
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Microscopes - Designation of microscope objectives - Part 4: Polarization characteristics
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