DuPont protective clothing against heat and flames

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DuPont protective clothing against heat and flames

We recommend protective clothing made of NOMEX® fibre for firefighters according to European standard EN 469:1995*.

*EN 469:1995 Protective clothing for firefighters :

Scope : This standard specifies minimum levels of performance requirements for protective clothing to be worn during fire fighting operations. The required performance levels may be achieved by the use of one or more garments, a multilayer clothing assembly which may contain material combinations or component assemblies. This standard does not cover special clothing for use in high risk situations e.g. reflective clothing or clothing for use in long term firefighting operations in high ambient temperatures e.g. forest firefighting.

Heat & Flame Performance Criteria :

  • Limited flames spread : material does not continue to burn, forms no hole, does not melt or drip after flame time < 2 s, after-glow time < 2 s
  • Heat transfer (flame) : heat transmission index HTI24 > 13 and a mean (HTI24 - HTI12) > 4
  • Heat transfer (radiation) : a mean t2 > 22s, a mean (T2 - t1) > 6s, and a mean transmission factor < 60 %
  • Residual strength of material when exposed to radiant heat : tensil strength > 450N
  • Heat resistance : material shall not melt, drip or ignite, and shall not shrink more than 5%

Additional Garment Testing :
Complete garment assembly may be additionally tested to typical scenarios encountered by a firefighter for example testing under emergency conditions must be carried out on an instrumented mannequin.