ISO 11999-5:2015

PPE for firefighters — Test methods and requirements for PPE used by firefighters who are at risk of exposure to high levels of heat and/or flame while fighting fires occurring in structures — Part 5: Helmets

ISO 11999-5:2015 specifies the minimum design and performance requirements for helmets as part of personal protective equipment (PPE) to be used by firefighters, primarily but not solely to protect against exposure to flame and high thermal loads. NOTE A Type 1 helmet is similar to helmets for fighting fires in structures according to EN 443:2008. A Type 2 helmet is similar to helmets used for fighting fires in structures according to NFPA 1971:2013. However, following ISO 11999‑1, all parts of heat and flame resistance requirements are consistent with each other, therefore heat and flame tests consistent with requirements for clothing given in ISO 11999‑3.

Équipement de protection personnelle pour pompiers — Méthodes d'essai et exigences pour les équipements de protection personnelle utilisés par les pompiers qui sont à risque d'une exposition à des niveaux élevés de chaleur et/ou de flamme quand la lutte contre les incendies survient dans les structures — Partie 5: Casques

General Information

• Status: Published
• Publication Date: 02-Nov-2015
• ICS: 13.340.10 - Protective clothing
• Technical Committee: ISO/TC 94/SC 14 - Firefighters' personal equipment
• Drafting Committee: ISO/TC 94/SC 14 - Firefighters' personal equipment
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 02-Aug-2024

Relations

• Revised: ISO 11999-5:2024 - PPE for firefighters — Test methods and requirements for PPE used by firefighters who are at risk of exposure to high levels of heat and/or flame while fighting fires occurring in structures — Part 5: Helmets
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11999-5
First edition
2015-11-01
PPE for firefighters — Test methods
and requirements for PPE used
by firefighters who are at risk of
exposure to high levels of heat
and/or flame while fighting fires
occurring in structures —
Part 5:
Helmets
Équipement de protection personnelle pour pompiers — Méthodes
d’essai et exigences pour les équipements de protection personnelle
utilisés par les pompiers qui sont à risque d’une exposition à des
niveaux élevés de chaleur et/ou de flamme quand la lutte contre les
incendies survient dans les structures —
Partie 5: Casques
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Helmet requirements . 2
4.1 General . 2
4.1.1 Fit . 2
4.1.2 Protrusions and sharp edges . 2
4.1.3 Reinforcement . 3
4.1.4 Replacement components and accessories . 3
4.1.5 Neck protector and ear covers . 3
4.1.6 Shikoro . . . 3
4.1.7 Optional components . . 3
4.1.8 Material selection . 4
4.1.9 Resistance to cleaning agent . 4
4.1.10 Protected area . 4
4.1.11 Field of vision. 5
4.1.12 Helmet mass . 6
4.2 Samples and helmet adjustment . 6
4.2.1 Samples . 6
4.2.2 Helmet adjustment. 6
4.3 Pre-conditioning .10
4.3.1 Pre-conditioning for Type 1 helmets .10
4.3.2 Pre-conditioning for Type 2 helmets .11
4.4 Performance requirements .12
4.4.1 Requirement table for Type 1 and Type 2 helmets .12
4.4.2 Radiant heat requirements for Type 1 helmets .14
4.4.3 Protection against molten metals for Type 1 helmets (optional) .14
4.4.4 Heat resistance .14
4.4.5 Flame resistance .15
4.4.6 Flame engulfment for Type 1 helmets (optional) .15
4.4.7 Thermal protective performance (TPP) for Type 2 helmets .15
4.4.8 Force impact resistance .16
4.4.9 Ballistic resistance for Type 1 helmets (optional) .16
4.4.10 Impact energy attenuation for Type 2 helmets .16
4.4.11 Penetration resistance .16
4.4.12 Lateral crushing for Type 1 helmets .16
4.4.13 Retention system effectiveness for Type 1 helmet (optional) .16
4.4.14 Retention system strength .17
4.4.15 Suspension system retention for Type 2 helmets .17
4.4.16 Shell retention for Type 2 helmets .17
4.4.17 Electrical properties .17
4.4.18 Hardware corrosion resistance for Type 2 helmets .18
4.5 Test methods .18
4.5.1 Radiant heat .18
4.5.2 Protection against molten metals for Type 1 helmets (optional) .18
4.5.3 Heat resistance .18
4.5.4 Flame resistance .19
4.5.5 Flame engulfment for Type 1 helmets (optional) .19
4.5.6 Thermal protective performance for Type 2 helmets ear covers .20
4.5.7 Force impact resistance .20
4.5.8 Ballistic resistance for Type 1 helmets (optional) .20
4.5.9 Impact energy attenuation for Type 2 helmets .21
4.5.10 Penetration resistance .21
4.5.11 Lateral crushing for Type 1 helmets .21
4.5.12 Retention system effectiveness for Type 1 helmets (optional) .21
4.5.13 Retention system strength .21
4.5.14 Suspension system retention for Type 2 helmets .22
4.5.15 Shell retention for Type 2 helmets .22
4.5.16 Electrical properties .22
4.5.17 Hardware corrosion resistance for Type 2 helmets .23
5 Marking .23
5.1 Marking for Type 1 helmets .23
5.2 Marking for Type 2 helmets .24
iv © ISO 2015 – All rights reserved

Foreword
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Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 94, Personal safety — Protective clothing and
equipment, Subcommittee SC 14, Fire-fighters’ personal equipment.
ISO 11999 consists of the following parts, under the general title PPE for firefighters — Test methods and
requirements for PPE used by firefighters who are at risk of exposure to high levels of heat and/or flame
while fighting fires occurring in structures:
— Part 1: General
— Part 2: Compatibility [Technical Specification]
— Part 3: Clothing
— Part 4: Gloves
— Part 5: Helmets
The following parts are under preparation:
— Part 6: Footwear
— Part 9: Fire hoods
...