AS/NZS 1801:1997

1 - AS/NZS 1801:1997 OCCUPATIONAL PROTECTIVE HELMETS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 OBJECTIVE
6 - 1.3 CLASSIFICATION
7 - 1.4 REFERENCED DOCUMENTS
8 - 1.5 DEFINITIONS
8 - 1.5.1 Basal plane
8 - 1.5.2 Brim
8 - 1.5.3 External vertical distance
8 - 1.5.4 Harness
8 - 1.5.5 Helmet accessories
8 - 1.5.6 Helmet conspicuity
9 - 1.5.7 High temperature workplace
9 - 1.5.8 Lateral clearance
9 - 1.5.9 Occupational protective helmet
9 - 1.5.10 Peak
9 - 1.5.11 Protective padding
9 - 1.5.12 Reference plane
9 - 1.5.13 Regulatory authority
9 - 1.5.14 Retaining strap
9 - 1.5.15 Retention system
9 - 1.5.16 Shall
9 - 1.5.17 Shell
9 - 1.5.18 Shock absorbing liner
9 - 1.5.19 Should
9 - 1.5.20 Ventilation gap
9 - 1.5.21 Ventilation holes
9 - 1.5.22 Vertical clearance
9 - 1.5.23 Wearing height
9 - 1.6 NOMINAL VALUES AND TOLERANCES
10 - 1.7 INTERPRETATION OF SPECIFIED LIMITING VALUES
11 - SECTION 2 MATERIALS
11 - 2.1 SHELL MATERIAL
11 - 2.2 HEADBAND AND CRADLE MATERIALS
11 - 2.2.1 General
11 - 2.2.2 Optional requirement for dusty work environments
12 - SECTION 3 DESIGN AND CONSTRUCTION
12 - 3.1 GENERAL
12 - 3.2 SHELL
12 - 3.2.1 Shell construction
12 - 3.2.2 Brim
12 - 3.2.3 Shell conspicuity
12 - 3.2.4 Shell conspicuity for special purposes
12 - 3.2.5 Retroreflective material
12 - 3.3 RETENTION SYSTEM
12 - 3.3.1 General
13 - 3.3.2 Cradle
13 - 3.3.3 Headband
13 - 3.3.4 Nape strap
13 - 3.3.5 Retaining strap for special purpose helmets
13 - 3.4 HELMET ACCESSORIES
13 - 3.4.1 General
13 - 3.4.2 Lamp bracket and cable clip
14 - 3.4.3 Retaining strap
14 - 3.4.4 Earmuffs and means of attachment
14 - 3.4.5 Eye and face protection (and means of attachment)
14 - 3.4.6 Ear and neck protection
14 - 3.4.7 Additional personal protective devices
14 - 3.5 DIMENSIONS
14 - 3.5.1 Vertical clearance
14 - 3.5.2 Wearing height
14 - 3.5.3 External vertical distance
15 - 3.5.4 Lateral clearance
15 - 3.6 VENTILATION
15 - 3.6.1 General
15 - 3.6.2 Shell vent
15 - 3.7 HELMET MASS
16 - SECTION 4 PERFORMANCE TESTING
16 - 4.1 GENERAL
16 - 4.2 APPLICATION OF TESTS
17 - 4.3 CONDITIONING
17 - 4.4 ELECTRICAL RESISTANCE TEST
17 - 4.5 STIFFNESS TEST
17 - 4.6 SHOCK ABSORPTION TEST
17 - 4.7 RESISTANCE TO PENETRATION
17 - 4.8 THERMAL PERFORMANCE
17 - 4.8.1 Application of fire hazard assessment
17 - 4.8.2 Resistance to ignition of helmet shell
17 - 4.9 ADDITIONAL THERMAL REQUIREMENTS
17 - 4.9.1 Prolonged high temperature stability
18 - 4.9.2 Helmet shell material thermal performance
18 - 4.9.3 Helmets intended for use in extreme high radiant heat environments
18 - 4.9.4 Resistance to ignition or ear and neck protectors
18 - 4.10 HIGH RETAINING STRAP STRENGTH
18 - 4.11 RETAINING STRAP STRENGTH WITH SPECIFIED BREAKPOINT
19 - SECTION 5 MARKING
19 - 5.1 HELMET SHELLS
19 - 5.2 HARNESS
19 - 5.3 CHINSTRAPS
20 - APPENDIX A - ELECTRICAL INSULATION TEST
20 - A1 SCOPE
20 - A2 PRINCIPLE
20 - A3 APPARATUS
20 - A4 PROCEDURE
20 - A5 REPORT
22 - APPENDIX B - STIFFNESS TEST
22 - B1 SCOPE
22 - B2 PRINCIPLE
22 - B3 APPARATUS
22 - B4 PROCEDURE
22 - B5 REPORT
23 - APPENDIX C - SHOCK ABSORPTION TEST
23 - C1 SCOPE
23 - C2 PRINCIPLE
23 - C3 APPARATUS
23 - C3.1 Headforms
23 - C3.2 Striker
23 - C4 METHODS OF MEASUREMENT OF TRANSMITTED FORCE
23 - C4.1 Acceleration method
24 - C4.2 Force method
24 - C4.3 Data channel
24 - C4.4 Instrumentation checks
24 - C5 TEST PROCEDURE
24 - C6 REPORT
26 - APPENDIX D - PENETRATION TEST
26 - D1 SCOPE
26 - D2 PRINCIPLE
26 - D3 APPARATUS AND MOUNTING
26 - D3.1 Headforms
26 - D3.2 Striker
26 - D4 PROCEDURE
27 - D5 REPORT
28 - APPENDIX E - THERMAL PERFORMANCE
28 - E1 SCOPE
28 - E2 PRINCIPLE
28 - E3 APPARATUS
28 - E4 TEST 1
28 - E4.1 Preparation
28 - E4.2 Procedure
28 - E4.3 Report
29 - E5 TEST 2
29 - E5.1 Preparation
29 - E5.2 Procedure
29 - E5.3 Report
31 - APPENDIX F - METHODS FOR THE DETERMINATION OF THERMAL STABILITY AT ELEVATED TEMPERATURES
31 - F1 SCOPE
31 - F2 PRINCIPLE
31 - F3 APPARATUS
31 - F4 TEST 1
31 - F4.1 Procedure
31 - F4.2 Report
32 - F5 TEST 2
32 - F5.1 Procedure
32 - F5.2 Report
33 - APPENDIX G - ALUMINIUM BAR TEST METHOD FOR CONDUCTING SHOCK ABSORPTION TESTS ON A ROUTINE BASIS
33 - G1 SCOPE
33 - G2 PRINCIPLE
33 - G3 APPARATUS
33 - G4 PREPARATION FOR TEST
34 - G5 APPLICATION OF IMPACT ENERGY
34 - G6 PROCEDURE
34 - G7 CRITERIA

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.

This Standard specifies requirements for occupational protective helmets to protect wearer's heads from falling objects in building and construction, quarrying, shipbuilding, forestry and other occupations with similar hazards.These requirements include the construction and materials of the helmet shell and head harness, mechanical strength of the shell and finish of the helmet.Methods of test referred to in this Standard are set out in Appendices A to F inclusive.This Standard does not specify requirements for helmets for motor vehicle users, pedal cyclists, horse riders and structural firefighters. For such requirements see AS 1698, AS/NZS 2063, AS 2063.1 and 2063.3 and AS 4067 respectively.Guidance on the selection, use and maintenance of occupational protective helmets is given by AS 1800.

Originated in Australia as AS Z10-1961.
Final Australian edition AS 1801-1981.
Originated in New Zealand as NZSS 1585-1960 (being endorsement of BS 2826-1957 with Amendments).
Final New Zealand edition NZS 5806:1980.
AS 1801-1981 and NZS 5806:1980 jointly revised, amalgmated and designated AS/NZS 1801:1997.
Incorporating: Amdt 1-1999