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BS EN ISO 11612
British, European and international standard for protective clothing against heat and flame.
Alsico designs and supplies workwear certified to EN ISO 11612, providing reliable heat and flame protection for industrial and electrical settings. Our garments combine comfort, durability, and compliance, ensuring teams remain safe while performing demanding tasks.
what is EN ISO 11612?
BS EN ISO 11612 is the British, European and international standard for protective clothing designed to shield the wearer’s body — excluding the hands — from heat and flame. It sets minimum performance requirements for garments exposed to various heat hazards, ensuring they resist ignition, provide thermal protection, and reduce the severity of burns in environments where these risks occur.
Garments certified to EN ISO 11612 are commonly used in manufacturing, welding, metalworking, and electrical industries, where incidental or prolonged exposure to flames, radiant heat, or molten metal is possible. They are tested to withstand different types of thermal hazards, including convective, radiant, and contact heat, as well as molten metal splashes.
The current version, EN ISO 11612:2015, replaced the 2008 standard to reflect updated testing procedures and design requirements. These changes ensure higher consistency, more robust performance verification, and better alignment with modern workwear needs, helping employers maintain compliance and protect their teams effectively.
EN ISO 11612 code letters explained
EN ISO 11612 garments carry code letters on their labels to indicate the specific types of heat and flame protection they provide. Each letter corresponds to a different performance area, helping employers and wearers understand exactly what hazards the garment is designed to resist.
advantages of EN ISO 11612 workwear
EN ISO 11612 workwear offers targeted protection against heat and flame, helping reduce the risk of burns and injury in high-temperature environments. Garments are designed to perform across multiple hazard types, depending on the code letters specified on the label.
limited flame spread
Garments resist ignition and help prevent flames from spreading across the fabric, protecting the wearer from brief exposure to open flames.
protection against convective and radiant heat
EN ISO 11612 clothing shields the body from heat transferred by hot air, gases, or radiant sources, reducing the severity of burns in manufacturing, welding, and other industrial settings.
molten metal splash resistance
Specific code letters indicate protection against splashes of molten aluminium or iron, essential for metalworking and foundry operations.
contact heat protection
Certain garments also guard against short-term contact with hot surfaces, offering additional safety for physically demanding roles.
durability and reliability
Tested to international standards, EN ISO 11612 workwear maintains its protective performance over repeated use, ensuring long-lasting compliance and safety.
how we test and certify EN ISO 11612 clothing
At alsico, every EN ISO 11612 garment undergoes rigorous testing to ensure it meets the performance levels indicated by its code letters. Testing covers all relevant heat hazards, including limited flame spread, convective and radiant heat, molten metal splashes, and contact heat.
Garments are assessed in accredited laboratories using internationally recognised methods, simulating real-world exposure to flames, hot objects, and molten metals. This ensures that the clothing performs reliably under the conditions it is designed for, and that the wearer receives the level of protection specified on the label.
Certification is then provided according to EN ISO 11612:2015 standards, giving employers confidence that their workwear complies with current regulations and provides trusted protection. Alsico also verifies garment construction, stitching, and material quality, ensuring that performance is maintained even after repeated wear and laundering.
our BS EN ISO 11612 protective clothing range
Alsico’s EN ISO 11612-certified garments are ideal for workers in industrial, welding, electrical, and manufacturing environments. Our protective garments, including EN ISO 11612 coveralls, trousers, jackets and more, are designed to protect against heat and flame according to varying levels of resistance indicated by code letters, while remaining breathable, flexible, and comfortable for extended wear.
contact our team to find out how Alsico can supply and customise EN ISO 13034-compliant protective clothing for your workforce.
frequently asked questions
EN ISO 13034 is the international standard for clothing that protects against limited chemical splash exposure, suitable for environments where full chemical suits aren’t required.
Type 6 specifies garments designed to protect against light splashes of chemicals, ensuring reliable barrier performance while allowing comfort and mobility.
Industries such as chemical processing, laboratories, petrochemicals, manufacturing, and cleaning often require Type 6 chemical splash protection.
Yes, garments can be layered with other certified PPE such as high-visibility clothing, flame-resistant clothing, or arc flash protection for environments with multiple hazards.
Follow the manufacturer’s care instructions. Avoid harsh detergents or bleach, and inspect garments regularly to ensure continued compliance and protection.
Yes. Alsico provides large-scale orders and bespoke solutions for organisations needing consistent protective clothing across multiple sites.
why choose alsico for EN ISO 11612-compliant clothing?
With decades of experience in protective clothing design and manufacturing, alsico delivers compliant, durable, and comfortable heat- and flame-protective uniforms. From single-site orders to large-scale procurement, we provide solutions tailored to your workplace hazards.
here’s why procurement teams trust alsico for BS EN ISO 11612-compliant workwear:
- Expertise in compliance – every garment is designed, tested, and certified to meet or exceed EN ISO 11612:2015 requirements.
- Tailored solutions – we work with customers to match code letters, garment styles, and layers to specific workplace hazards.
- Custom branding – EN ISO 11612 clothing can be customised with logos, colours, and design features without compromising protection.
- Bulk supply capability – we manage large contracts efficiently, ensuring consistent quality and delivery across multiple sites.
- Comfort and ergonomics – garments are designed for long shifts, providing freedom of movement while maintaining full protective performance.
- Durable materials – fabrics and construction methods are chosen to withstand repeated wear, laundering, and challenging industrial conditions.
Alsico combines technical expertise, high-quality materials, and practical design to deliver EN ISO 11612 workwear that keeps teams safe, comfortable, and compliant.
get in touch to explore our EN ISO 11612 range and learn how we can support your heat and flame requirements.
learn more about the sub environments we supply into
electricity and arc flash
Our clothing, tailored to specific risk levels, offers significant protection, enhancing safety in industries where Arc Flash incidents are prevalent, minimising the risk of serious burns and injuries.
heat, flame, and welding
Burning hot embers, sparks and fire should never touch the skin of a human, our high-performance, FR and Welding protection garments are essential for workers in these environments.
visibility
Stay seen and secure with our high-visibility solutions, designed to keep workers visible and protected in environments such as railways, roads, docks, airports, and construction.
anti-static / ESD
Industries where electrostatic discharge poses a threat require anti-static/ESD garments. These specialized garments prevent static electricity buildup during sensitive operations, providing a crucial line of defense for worker safety.
molten metals
Protective solutions to ensure your team's safety from molten metal hazards, ensuring maximum-level protection against various metals, including zinc, nickel, and lead, ensuring your team's safety.
chemical
Chemical-resistant attire is necessary for protecting workers from hazardous substances in various industries. Alsico's reliable protective clothing creates a secure barrier against potentially harmful chemicals, prioritizing workplace safety.
rain and cold
Rain and cold weather workwear is pivotal in ensuring safety and comfort in challenging conditions, ensuring workers across diverse industries can perform their tasks safely and efficiently.
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