Prosol UK fire blanket passes new EV fire safety standard
Iain Hoey
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Fire Cloak passes DIN SPEC 91489:2024-11 test in UK
Prosol UK has reported that its Fire Cloak EV fire limitation blanket has passed all requirements of the DIN SPEC 91489:2024-11 testing framework.
The company said the DIN standard was published in Germany in November 2024 and is the first regulated specification focused on fire blankets for electric vehicles.
According to Prosol UK, the certification confirms that Fire Cloak has met detailed requirements for loop strap design, flame resistance, strength testing, and thermal resistance up to 1,000°C.
The company stated that it has advocated for the creation of such a standard and welcomed the chance to test its product against the defined benchmarks.
DIN SPEC 91489:2024-11 standard requirements
Prosol UK explained that the DIN SPEC 91489:2024-11 introduces strict criteria for the design, performance and usability of fire blankets intended for EV incidents.
According to the company, requirements include clearly marked loop straps, mechanical stability testing, centreline identification, and performance validation at high temperatures.
The standard also requires fire blankets to be PFAS-free, include batch tracking and be usable on wet or dry vehicles by no more than two people within 30 seconds.
It stated that certification must include documented and visual evidence of all test outcomes and expert opinions confirming product suitability for EV use.
Fire Cloak tested in multiple fire resistance scenarios
The company noted that it had already conducted various third-party fire resistance tests prior to the DIN standard’s release.
Prosol UK listed several tests in which the Fire Cloak passed, including BS 476 Parts 6 and 7 (achieving Class 0), ASTM D6413, NFPA 701, and FMVSS 302.
It added that the Fire Cloak withstood 1,000°C for 90 minutes during an indicative furnace test based on BS476 Part 22 and achieved A2, s1, d0 under EN ISO 13501-1:2018.
Standard aims to improve safety in EV fire situations
According to Prosol UK, the purpose of DIN SPEC 91489:2024-11 is to provide assurance to responders, technicians and the public when dealing with lithium-ion battery incidents.
The company said that standardised testing helps build trust in product performance and improves the quality of emergency tools available on the market.
It also stated that it will continue to work with safety experts and regulators to share knowledge and improve safety outcomes in EV-related fire incidents.
Fire blanket passes DIN SPEC 91489 testing for EV fire safety: Summary
Prosol UK announced its Fire Cloak EV fire blanket has passed DIN SPEC 91489:2024-11.
The DIN standard is the first regulated test for EV fire blankets.
It includes strict requirements for strap placement, flame resistance, strength, and usability.
Fire Cloak met all criteria, including thermal resistance up to 1,000°C.
Tests include EN ISO 13501-1, FMVSS 302, and BS476 Part 22.
Prosol UK conducted additional third-party testing prior to certification.
DIN approval requires physical testing and documentation of all results.
The company stated it supports efforts to improve safety in lithium-ion battery fires.
DIN SPEC 91489:2024-11 was developed in Germany and released in November 2024.
Prosol UK confirmed it will continue engaging with regulators and industry experts.

