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