Flame Retardant & Arc Flash clothing
Flame retardant clothing is designed to protect workers from heat, flame, and thermal hazards in high-risk environments including welding, utilities, oil and gas, rail infrastructure, and industrial manufacturing. At CMT Group, we supply a comprehensive range of EN ISO 11612 compliant FR clothing, including polo shirts, trousers, coveralls, salopettes, and wet weather outerwear, all built for compliance, durability, and real-world industrial use.
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FR clothing is not optional PPE in these environments: it is hazard-controlled clothing required under UK safety regulations wherever workers face exposure to heat, flame, molten metal splash, or arc flash. Our range includes multi-norm garments combining flame, anti-static, and arc flash protection for complex industrial environments.
- ✓ EN ISO 11612 compliant FR clothing for heat and flame protection
- ✓ Protection against flame spread, radiant heat and molten metal splash
- ✓ Suitable for welding, utilities, oil and gas, rail and industrial use
- ✓ Multi-norm options including arc flash and anti-static protection
- ✓ Inherently FR and treated fabric options available
- ✓ Hi-vis FR options for combined visibility and thermal protection
- ✓ Bulk supply for contractors, industrial operators and procurement teams
What is EN ISO 11612 Flame Protection?
EN ISO 11612 is the primary UK and European standard for protective clothing designed to shield workers from heat and flame hazards. It sets minimum performance requirements ensuring garments resist ignition, provide thermal insulation, and reduce the severity of burns during exposure to heat or fire. Garments are assessed against multiple heat risks and assigned performance codes for each.
The standard covers protection against flame spread (Code A), convective heat (Code B), radiant heat (Code C), molten aluminium splash (Code D), molten iron splash (Code E), and contact heat (Code F). A garment's label will display the codes and performance levels it has achieved, allowing procurement teams to match garments to the specific hazards present in their working environment.
Flame Retardant Clothing by Garment Type
Our range covers every EN ISO 11612 certified garment type required across UK industrial, utilities, welding, and rail environments.
Choosing the Right Flame Retardant Clothing
The correct FR clothing depends on the specific thermal hazards present in the working environment. Garments must be selected to match the hazard type, with EN ISO 11612 codes confirming protection against each relevant risk. Workers exposed to welding sparks and spatter require garments also certified to EN ISO 11611, while those in electrical or utilities environments may additionally require arc flash protection to IEC 61482-2.
Multi-norm garments combine certification to several standards simultaneously, making them the practical choice for complex environments where a single garment must address flame, arc flash, and anti-static risks. Full-body protection requires that all visible garment layers carry the relevant FR certification, as any unprotected layer can negate the protection provided by the outer garment.
| Hazard / industry | FR garment required | Standard required |
|---|---|---|
| Heat and flame, general industrial | FR trousers, polo shirt or coverall | EN ISO 11612 |
| Welding and metal fabrication | FR welding jacket and trousers | EN ISO 11611 · EN ISO 11612 |
| Electrical arc flash risk | Arc flash rated jacket or coverall | IEC 61482-2 · EN ISO 11612 |
| Flammable atmospheres / anti-static | Multi-norm FR anti-static garment | EN ISO 11612 · EN 1149-5 |
| Outdoor industrial with weather exposure | FR waterproof jacket and trousers | EN ISO 11612 · Waterproof rated |
| Combined FR and hi-vis (rail / utilities) | Multi-norm hi-vis FR jacket and trousers | EN ISO 11612 · EN ISO 20471 |
Flame Retardant Clothing Supply for Industrial and High-Risk Environments
Flame retardant clothing plays a critical role in protecting workers across industries where heat, sparks, and flammable materials are present. EN ISO 11612 certified FR garments are designed to act as a barrier between the wearer and thermal hazards, resisting ignition and self-extinguishing when the heat source is removed, giving workers the protection needed to prevent or reduce serious burn injuries.
At CMT Group, we support contractors, industrial operators, and procurement teams with scalable FR clothing solutions built for compliance and long-term performance. Our range covers every garment type required across welding, utilities, oil and gas, rail, and industrial manufacturing, with bulk pricing and account management available for teams requiring consistent supply across multiple sites and projects.
Frequently asked questions
What is flame retardant clothing?
Flame retardant clothing is protective workwear engineered to resist ignition, limit the spread of flames, and reduce the severity of burn injuries when workers are exposed to heat, fire, or thermal hazards. Unlike standard workwear, FR garments are made from inherently flame-resistant or treated fabrics that self-extinguish when the ignition source is removed, providing a critical window of protection to reduce injury.
What does EN ISO 11612 mean?
EN ISO 11612 is the main UK and European standard for protective clothing against heat and flame. It tests garments against flame spread, convective heat, radiant heat, contact heat, and molten metal splashes, assigning performance codes (A through F) for each hazard type. These codes must match the hazards present in the work environment when selecting FR garments.
Is flame retardant clothing required by law?
Yes. Under the Personal Protective Equipment at Work Regulations 1992 and associated industry standards, employers must provide appropriate protective clothing where risk assessments identify heat, flame, or thermal hazards. In industries such as welding, oil and gas, utilities, and electrical work, FR clothing is a legal requirement and a contractual obligation on most regulated site environments.
What is multi-norm flame retardant clothing?
Multi-norm FR garments carry certification to multiple safety standards simultaneously, such as EN ISO 11612 (heat and flame), EN 1149-5 (anti-static), and IEC 61482-2 (arc flash). This makes them suitable for complex environments where workers face several thermal and electrical hazards, simplifying procurement and ensuring comprehensive protection from a single garment.
What industries use flame retardant clothing?
Common industries include welding and metal fabrication, oil and gas, utilities and electrical maintenance, rail infrastructure, manufacturing, heavy engineering, and chemical processing. Multi-norm environments where workers face combined risks of flame, arc flash, and anti-static hazards are increasingly common across these sectors.
Why buy flame retardant clothing from CMT Group?
CMT Group supplies EN ISO 11612 compliant flame retardant clothing at scale, with fast UK delivery including same-day and next-day despatch for urgent industrial requirements. Our range covers every FR garment type required on UK industrial, utilities, and rail sites, with bulk pricing and account management available for procurement teams.
EN ISO 11612 vs EN ISO 11611: What is the Difference?
EN ISO 11612 and EN ISO 11611 are both standards for protective clothing used in thermal hazard environments, but they cover different primary risks. EN ISO 11612 is the broader heat and flame standard, covering protection against flame spread, convective heat, radiant heat, contact heat, molten aluminium splash, and molten iron splash. It is applicable across a wide range of industrial environments including utilities, oil and gas, chemical processing, and general manufacturing where thermal hazards are present.
EN ISO 11611 is the welding-specific standard, covering protection against small splashes of molten metal, short contact with flame, and the radiant heat produced during welding and allied processes. It is structured into two classes: Class 1 for lower-risk welding techniques and Class 2 for higher-risk processes producing greater spatter and heat. Many welding environments require garments certified to both EN ISO 11611 and EN ISO 11612, as the standards address overlapping but distinct hazard categories. Where both standards are specified, the garment must carry both certifications.
Accreditations and memberships
Shop Flame Retardant Clothing by Type
Flame Retardant & Arc Flash clothing
Flame retardant clothing is designed to protect workers from heat, flame, and thermal hazards in high-risk environments including welding, utilities, oil and gas, rail infrastructure, and industrial manufacturing. At CMT Group, we supply a comprehensive range of EN ISO 11612 compliant FR clothing, including polo shirts, trousers, coveralls, salopettes, and wet weather outerwear, all built for compliance, durability, and real-world industrial use.
Read more Read less
FR clothing is not optional PPE in these environments: it is hazard-controlled clothing required under UK safety regulations wherever workers face exposure to heat, flame, molten metal splash, or arc flash. Our range includes multi-norm garments combining flame, anti-static, and arc flash protection for complex industrial environments.
- ✓ EN ISO 11612 compliant FR clothing for heat and flame protection
- ✓ Protection against flame spread, radiant heat and molten metal splash
- ✓ Suitable for welding, utilities, oil and gas, rail and industrial use
- ✓ Multi-norm options including arc flash and anti-static protection
- ✓ Inherently FR and treated fabric options available
- ✓ Hi-vis FR options for combined visibility and thermal protection
- ✓ Bulk supply for contractors, industrial operators and procurement teams
What is EN ISO 11612 Flame Protection?
EN ISO 11612 is the primary UK and European standard for protective clothing designed to shield workers from heat and flame hazards. It sets minimum performance requirements ensuring garments resist ignition, provide thermal insulation, and reduce the severity of burns during exposure to heat or fire. Garments are assessed against multiple heat risks and assigned performance codes for each.
The standard covers protection against flame spread (Code A), convective heat (Code B), radiant heat (Code C), molten aluminium splash (Code D), molten iron splash (Code E), and contact heat (Code F). A garment's label will display the codes and performance levels it has achieved, allowing procurement teams to match garments to the specific hazards present in their working environment.
Flame Retardant Clothing by Garment Type
Our range covers every EN ISO 11612 certified garment type required across UK industrial, utilities, welding, and rail environments.
Choosing the Right Flame Retardant Clothing
The correct FR clothing depends on the specific thermal hazards present in the working environment. Garments must be selected to match the hazard type, with EN ISO 11612 codes confirming protection against each relevant risk. Workers exposed to welding sparks and spatter require garments also certified to EN ISO 11611, while those in electrical or utilities environments may additionally require arc flash protection to IEC 61482-2.
Multi-norm garments combine certification to several standards simultaneously, making them the practical choice for complex environments where a single garment must address flame, arc flash, and anti-static risks. Full-body protection requires that all visible garment layers carry the relevant FR certification, as any unprotected layer can negate the protection provided by the outer garment.
| Hazard / industry | FR garment required | Standard required |
|---|---|---|
| Heat and flame, general industrial | FR trousers, polo shirt or coverall | EN ISO 11612 |
| Welding and metal fabrication | FR welding jacket and trousers | EN ISO 11611 · EN ISO 11612 |
| Electrical arc flash risk | Arc flash rated jacket or coverall | IEC 61482-2 · EN ISO 11612 |
| Flammable atmospheres / anti-static | Multi-norm FR anti-static garment | EN ISO 11612 · EN 1149-5 |
| Outdoor industrial with weather exposure | FR waterproof jacket and trousers | EN ISO 11612 · Waterproof rated |
| Combined FR and hi-vis (rail / utilities) | Multi-norm hi-vis FR jacket and trousers | EN ISO 11612 · EN ISO 20471 |
Flame Retardant Clothing Supply for Industrial and High-Risk Environments
Flame retardant clothing plays a critical role in protecting workers across industries where heat, sparks, and flammable materials are present. EN ISO 11612 certified FR garments are designed to act as a barrier between the wearer and thermal hazards, resisting ignition and self-extinguishing when the heat source is removed, giving workers the protection needed to prevent or reduce serious burn injuries.
At CMT Group, we support contractors, industrial operators, and procurement teams with scalable FR clothing solutions built for compliance and long-term performance. Our range covers every garment type required across welding, utilities, oil and gas, rail, and industrial manufacturing, with bulk pricing and account management available for teams requiring consistent supply across multiple sites and projects.
Frequently asked questions
What is flame retardant clothing?
Flame retardant clothing is protective workwear engineered to resist ignition, limit the spread of flames, and reduce the severity of burn injuries when workers are exposed to heat, fire, or thermal hazards. Unlike standard workwear, FR garments are made from inherently flame-resistant or treated fabrics that self-extinguish when the ignition source is removed, providing a critical window of protection to reduce injury.
What does EN ISO 11612 mean?
EN ISO 11612 is the main UK and European standard for protective clothing against heat and flame. It tests garments against flame spread, convective heat, radiant heat, contact heat, and molten metal splashes, assigning performance codes (A through F) for each hazard type. These codes must match the hazards present in the work environment when selecting FR garments.
Is flame retardant clothing required by law?
Yes. Under the Personal Protective Equipment at Work Regulations 1992 and associated industry standards, employers must provide appropriate protective clothing where risk assessments identify heat, flame, or thermal hazards. In industries such as welding, oil and gas, utilities, and electrical work, FR clothing is a legal requirement and a contractual obligation on most regulated site environments.
What is multi-norm flame retardant clothing?
Multi-norm FR garments carry certification to multiple safety standards simultaneously, such as EN ISO 11612 (heat and flame), EN 1149-5 (anti-static), and IEC 61482-2 (arc flash). This makes them suitable for complex environments where workers face several thermal and electrical hazards, simplifying procurement and ensuring comprehensive protection from a single garment.
What industries use flame retardant clothing?
Common industries include welding and metal fabrication, oil and gas, utilities and electrical maintenance, rail infrastructure, manufacturing, heavy engineering, and chemical processing. Multi-norm environments where workers face combined risks of flame, arc flash, and anti-static hazards are increasingly common across these sectors.
Why buy flame retardant clothing from CMT Group?
CMT Group supplies EN ISO 11612 compliant flame retardant clothing at scale, with fast UK delivery including same-day and next-day despatch for urgent industrial requirements. Our range covers every FR garment type required on UK industrial, utilities, and rail sites, with bulk pricing and account management available for procurement teams.
EN ISO 11612 vs EN ISO 11611: What is the Difference?
EN ISO 11612 and EN ISO 11611 are both standards for protective clothing used in thermal hazard environments, but they cover different primary risks. EN ISO 11612 is the broader heat and flame standard, covering protection against flame spread, convective heat, radiant heat, contact heat, molten aluminium splash, and molten iron splash. It is applicable across a wide range of industrial environments including utilities, oil and gas, chemical processing, and general manufacturing where thermal hazards are present.
EN ISO 11611 is the welding-specific standard, covering protection against small splashes of molten metal, short contact with flame, and the radiant heat produced during welding and allied processes. It is structured into two classes: Class 1 for lower-risk welding techniques and Class 2 for higher-risk processes producing greater spatter and heat. Many welding environments require garments certified to both EN ISO 11611 and EN ISO 11612, as the standards address overlapping but distinct hazard categories. Where both standards are specified, the garment must carry both certifications.
Accreditations and memberships
