EN ISO 11612 - Heat and flame

UNE EN  ISO 11612 HEAT AND FLAME

 Fabrics which meet this EN ISO standard:

PRE-TREATMENT

ISO 6330  ISO 15797

Before each test, the test materials shall be washed and dried 5 times in accordance with the procedure EN ISO 6330. If industrial washing and/or finishing is allowed, then the protective clothing shall be washed five times in accordance with ISO 15797.

PRESTACIONES TÉRMICAS

ISO 17493

Heat resistance at a  temperature of 180ºC: All fabrics and hardware used in the garment and/or clothing assembly shall not ignite or melt and shall not shrink more than 5%

Heat resistance at a temperature of  260ºC: if the fabric shall be worn next to the skin, that material shall not ignite or melt and shall not shrink more than 10%

ISO 15025

Limited flame spread The materials and seams, shall be tested according to the procedure A  (A1 code) or procedure B (A2 code). When tested according to the procedure A, shall meet the following requirements:

          a)    No specimen shall give hole formation.                                                             

         b)    No specimen shall give flaming to the top or either side edge

         c)     No specimen shall melt or give flaming or molten debris   

         d)    The mean value of after-flame time shall be ≤ 2 s. 

         e)    The mean value of after-glow time shall be ≤ 2 s.

         g)    Seams shall continue to hold the panels of fabrics together

 When tested according to the procedure B, shall meet the following requirements:                                          

         a)    No specimen shall give flaming to the top or either side edge

         b)     No specimen shall melt or give flaming or molten debris   

         c)    The mean value of after-flame time shall be ≤ 2 s. 

         d)    The mean value of after-glow time shall be ≤ 2 s.

ISO 9151

Convective heat (Code B): garments and/or clothing assemblies which are claimed to offer protection against convective heat shall meet at least performance level B1 in following table:

ISO 6942

Radiant Heat (Code C): Tested at a heat flux density of 20 kW/m²  garments and/or clothing assemblies which are claimed to offer protection against radiant heat shall meet at least performance level C1 in following table:

ISO 9185

Molten aluminium splashes (Code D): garments and/or clothing assemblies which are claimed to offer protection against molten aluminium splashes shall meet at least performance level D1 in following table

ISO 9185

Molten iron splashes (Code E): garments and/or clothing assemblies which are claimed to offer protection against molten aluminium splashes shall meet at least performance level E1 in following table

ISO 12127

Contact heat (Code F): When tested at a temperature of 250ºC, garments and/or clothing assemblies which are claimed to offer protection against contact heat shall meet at least performance level F1 in following table:

PHYSICAL REQUIREMENTS

ISO 5077

Dimensional change:  The change in dimensional of woven, non-woven and sheet materials shall not exceed 3% in either length or width direction. The change in dimensional of knitted materials shall not exceed 5%, if is greater than 5%, the manufacturer shall give relevant information and advice in the Manufacturers Instructions and labelling.

ISO 13934-1

Tensile strenght: The tensile strength of a woven outer material shall be minimum 300 N for warp and weft.

When tested in accordance with EN ISO 3376, the tensile strength of a leather outer material shall be minimum 90 N.

ISO 13937-2

Tear strength: The tear strength of a woven outer material shall be minimum 15 N for warp and weft.

When tested in accordance with EN ISO 3377, the tensile strength of a leather outer material shall be minimum 20 N.

ISO 13938-1

Burst strength for knitted materials: The burst strength of a knitted outer material shall be minimum 200 kPa.

ISO 13935-2

Seams strength: The seam strength of the outer material or outer garment material of the clothing assembly shall give a breaking load of minimum 25 N

EN 420

MARKING:  Pictogram

A Limited flame spread                                                                                                                            

B Convective heat                                                                                 

C Radiant heat                                                                                                                                          

D Molten aluminium splashes                                                                                                                           

E Molten Iron splashes                                                                              

F Contact heat                                                                                          

W Resistance to water penetration                                                                                                                  

A1 A2 BX CX DX EX FX WXX