Heat & flame

EN ISO 14116: 2008

Protective clothing – Protection against heat and flame – Limited flame spread materials, material assemblies and clothing

This International Standard specifies the performance requirements for the limited flame spread properties of materials, material assemblies and protective clothing in order to reduce the possibility of the clothing burning and thereby itself constituting a hazard. Additional requirements for clothing are also specified. Protective clothing complying with this International Standard is intended to protect workers against occasion I and brief contact with small igniting flames, in circumstances where there is no significant heat hazard and without the presence of another type of heat. When protection against heat hazards is necessary in addition to protection against limited spread flammability, then standards, such as ISO 11612, are more appropriate. A classification system is given for materials, material assemblies and garments which are tested according to ISO 15025:2000, Procedure A.

Scope:

  • Against brief contact with small igniting flames
  • No significant heat hazard

The standard specifies 3 areas:

  1. Performance requirements material
  2. Design requirements
  3. Marking & guidance

Ad 1) Performance requirements for woven fabrics (after pretreatment*)

TEST METHOD REQUIREMENT
Heat and flame requirements

Limited flame spread (code A)

A1: surface ignition
  

ISO 15025

Index 1

  • No flaming or hole formation to top or side edge
     
  • No flaming debris
     
  • No afterglow from carbonize area to undamaged area

Index 2

  • No flaming to top or side edge
     
  • No flaming debris
     
  • No afterglow from carbonize area to undamaged areaNo hole formation

Index 3

  • No flaming to top or side edge
     
  • No flaming debris
     
  • No afterglow from carbonize area to undamaged area
     
  • No hole formation
     
  • Maximum 2 seconds afterflame

* Pretreatment:

The limited flame spread in EN ISO 14116 is also carried out after the maximum amount of cleaning cycles, set by the manufacturer based on standardized cleaning standards.

Cleaning methods:
ISO 6330        Domestic laundry
ISO 15797      Industrial laundry
ISO 3175-1     Dry cleaning

TenCate Protective Fabrics - Industrial Safety