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En iso 11611 - Welding


En iso 11611 - Welding

  • Categories:Industry news
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  • Time of issue:2016-11-10

En iso 11611 - Welding

Drotex Flame Retardant Fabric Series can meet this EN ISO standard:

                                           En iso 11611 - Welding


                                           En iso 11611 - Welding


                                           En iso 11611 - Welding


ISO 13688 Sizes: according to ISO 13688.

Design: Welders’ protective clothing shall be designed without electrical conduction, from the outside to the inside. Shall be checked by visual inspection.

Welders’ protective suits shall completely cover the upper and lower torso, neck, arms and legs. Is possible a single garment or a two-piece garment. The jacket of a two-piece suit shall provide a minimum overlap of 20 cm between the jacket and the top of the trousers. This minimum overlap shall be maintained in all positions and in movements encountered during welding.

Pockets: if its necessary, shall be constructed with external openings shall be made of materials conforming to ISO 15025, flame spread and according with the standard ISO 9150 (impact of small splashes). External opening pockets including pass through openings shall be flapped except for; side pockets below the waist which do not extend more than 10º forward of the side seam, and a single rule pocket with an opening not grater than 75 mm placed behind the side seam on one or both legs and measured flat.  All flaps shall be stitched down or capable of fastening the pocket closed. They shall be 20 mm wider than the opening (10 mm on each side).

Closures and seams: closures shall be designed with a protective cover flap on the outside of the garment. The maximum distance between buttonholes shall be 150 mm. If zippers are used, the slide fastener shall be designed to lock when completely closed. Cuff may be provided with closures to reduce their width. The closure and any fold which it creates shall be on the underside of the cuff. Cuff shall not have turn-ups. Necks openings shall be provided with closures.

Trousers or one-peace suits shall not have turn-ups.  They may have side slits which shall have a means of closure and the slit and closure shall be covered.

Overlapping seams on the outside of the garment shall be downward facing and overstitched.


ISO 6330 

ISO 15797

Prior to testing, the protective clothing shall be pre-treated. If a manufacturer indicates that the performance of the garment is intended for a single use only, then the test shall only be carried out on new material. Before each test, the cleaning shall be in line with the manufacture’s instructions. If the number of cleanings cycles is not specified, five cleaning cycles shall be performed. The flame spread test shall be carried out in the new state too.
ISO 15025

Limited flame spread: Each material or material assembly and each type of seam used in welders’ protective clothing shall be tested in accordance with ISO 15025 using either Procedure A (code letter A1) or Procedure B (code letter A2)  or both, in accordance with the existent risk during the foreseen use. With Procedure A, materials and materials assemblies shall meet the following requirements;

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

b)       No specimen shall give hole formation,

c)       No specimen shall give flaming or molten debris,

d)       The mean value of afterflame time shall be ≤ 2 s

e)       The main value of afterglow time shall be ≤ 2 s

Seams shall remain intact.

When testing in accordance with ISO 15025 procedure B edge ignition requirement b) is not applicable.

ISO 9150

Impact of spatter: When tested according to ISO 9150, each material or material garment assemblies shall require;

-          At least 15 drops of molten metal to rise the temperature behind the test specimen by 40 ºK  for CLASS 1

-          25 drops of molten metal to rise the temperature behind the test specimen by 40 ºK for CLASS 2

ISO 9151

Heat transfer (radiation): testing at a heat flux density of 20 kW/m2 , the radiant heat transfer index (RHTI 24 ºC) shall be:

-          For CLASS 1: RHTI 24 ≥ 7;

-          For CLASS 2:  RHTI 24 ≥ 16.

If the garment is multi-layered, the test shall be carried out on the complete material assembly.

EN 1149-2 Electrical resistance: conditioning and testing of the samples shall be carried out at a temperature of 20 ºC ± 2 ºC and relative humidity of 85% ± 5% . When the material assembly is tested in accordance with the test method specified in EN 1149-2 an under an applied potencies of (100 ± 5) V, the electrical resistance shall be greater than 105 Ω, for all assemblies of the clothing. Seams shall be taken into account when preparing test samples.
ISO 5077

Dimensional changes: The dimensional change of woven textile materials shall not exceed ± 3%.

The dimensional change of knitted textile materials shall not exceed ± 5%

ISO 13934-1

Tensile strength: Woven outer textiles materials shall have a minimum tensile strength of 400 N in both directions.

Leather shall have a minimum tensile strength of 80 N in accordance with ISO 3376 using the standard piece in two directions at right angles in the plane of the materials.

ISO 13937-2

Tear strength: The tear strength of a woven outer textiles materials and leather will be:

- CLASS 1 > 15N

- CLASS 2 > 20N

The tear strength of leather shall be determined in accordance with ISO 3377-1.

ISO 13938-1 Burst strength of knitted fabrics:  The knitted outer material, shall be a minimum bursting strength at least of 100kPa ( when using 50 cm2 test area) or 200 KPa (when using a 7,3 cm2 test area).
ISO 13935-2 Seam strength: The seam strength of the outer material or outer garment material of the clothing assembly shall have a minimum seam strength of 225N.
ISO 13688

EN ISO 11611:2015

En iso 11611 - Welding

CLASE "X" A1 and/or A2


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