ISO 16073-5:2019
Wildland firefighting personal protective equipment — Requirements and test methods — Part 5: Helmets
This document specifies the minimum performance requirements and methods of test for helmets used for wildland firefighting.
This document covers the general design of wildland firefighting helmets, the minimum levels of performance for the materials employed and the methods of test used. The personal protection equipment (PPE) is not intended to provide protection during fire entrapment.
This document does not cover PPE for structural firefighting (see ISO 11999 series), for use against chemical, biological, radiological and nuclear hazards, or for use where a reflective outer surface is required (see ISO 15538).
Activities in support of wildland firefighting, such as the cutting of trees and the use of a chainsaw can require additional protection to that provided in this document. Users are directed to those relevant standards for the requirements associated with such protection.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Design and general requirements
4.1 General
4.2 Helmet shell
4.3 Vertical clearance
4.4 Horizontal clearance
4.5 Wearing height
4.6 Mass
4.7 Shell conspicuity
4.8 Retroreflective material
4.9 Neck protector
4.10 Retention system
4.11 Accessories attached on the helmet
5 Performance requirements
5.1 Shock absorption
5.1.1 Crown impact
5.1.2 Off-crown impacts
5.2 Resistance to penetration
5.3 Retention system strength
5.4 Lateral rigidity
5.5 Flame resistance
5.6 High-temperature stability
5.7 High radiant heat environments
5.8 Electrical insulation
5.9 Optional low-temperature tests
6 Test requirements
6.1 Samples
6.2 Conditioning for testing
6.2.1 Preconditioning chamber
6.2.2 Preconditioning
6.2.3 Low temperature conditioning
6.2.4 High temperature conditioning
6.2.5 Wet conditioning
6.3 Headforms
6.3.1 Construction
6.3.2 Selection of size
6.3.3 Measurement of clearances and wearing height
6.4 Shock absorption test
6.4.1 Principle
6.4.2 Apparatus
6.4.3 Test procedures
6.5 Penetration resistance test
6.5.1 Apparatus
6.5.2 Test procedure
6.6 Retention system strength test
6.6.1 Principle
6.6.2 Apparatus
6.6.3 Procedure
6.7 Lateral rigidity test
6.8 Flame resistance test
6.8.1 General
6.8.2 Apparatus
6.8.3 Test procedure
6.9 Electrical insulation test
7 Marking and labelling
7.1 General marking requirements
7.2 Label durability and legibility
7.3 Compliance marking requirements
8 Manufacturer’s information
Annex A (normative) Conditioning and testing schedule
Annex B (informative) Guidelines for personal protective equipment (helmet) design
Annex C (normative) Thermal stability of helmets at elevated temperatures
Annex D (informative) Recommendations for the materials and construction of helmets
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Design and general requirements
4.1 General
4.2 Helmet shell
4.3 Vertical clearance
4.4 Horizontal clearance
4.5 Wearing height
4.6 Mass
4.7 Shell conspicuity
4.8 Retroreflective material
4.9 Neck protector
4.10 Retention system
4.11 Accessories attached on the helmet
5 Performance requirements
5.1 Shock absorption
5.1.1 Crown impact
5.1.2 Off-crown impacts
5.2 Resistance to penetration
5.3 Retention system strength
5.4 Lateral rigidity
5.5 Flame resistance
5.6 High-temperature stability
5.7 High radiant heat environments
5.8 Electrical insulation
5.9 Optional low-temperature tests
6 Test requirements
6.1 Samples
6.2 Conditioning for testing
6.2.1 Preconditioning chamber
6.2.2 Preconditioning
6.2.3 Low temperature conditioning
6.2.4 High temperature conditioning
6.2.5 Wet conditioning
6.3 Headforms
6.3.1 Construction
6.3.2 Selection of size
6.3.3 Measurement of clearances and wearing height
6.4 Shock absorption test
6.4.1 Principle
6.4.2 Apparatus
6.4.3 Test procedures
6.5 Penetration resistance test
6.5.1 Apparatus
6.5.2 Test procedure
6.6 Retention system strength test
6.6.1 Principle
6.6.2 Apparatus
6.6.3 Procedure
6.7 Lateral rigidity test
6.8 Flame resistance test
6.8.1 General
6.8.2 Apparatus
6.8.3 Test procedure
6.9 Electrical insulation test
7 Marking and labelling
7.1 General marking requirements
7.2 Label durability and legibility
7.3 Compliance marking requirements
8 Manufacturer’s information
Annex A (normative) Conditioning and testing schedule
Annex B (informative) Guidelines for personal protective equipment (helmet) design
Annex C (normative) Thermal stability of helmets at elevated temperatures
Annex D (informative) Recommendations for the materials and construction of helmets
Bibliography