UNE-EN ISO 11611:2015

PROTECTIVE CLOTHING AGAINST SPLASHES AND RELATED PROCESSES. Equivalence with EN ISO 11611:2015 e ISO 11611:2015.

OBJECT

This international standard sets out essential minimum safety requirements and test methods for protective clothing to protect the wearer against splashes (small droplets of molten metal), short-term contact with a flame, radiant heat from the arc used in welding and related processes. This standard does not cover the requirements for the protection of hands, face, eyes or feet.

REQUIREMENTS

PRE-TREATMENT: 5 cycles, and/or as directed by the manufacturer

CONDITIONING: minimum 24 h at 20 ± 2 ºC and 65 ± 5% RH

TEST METHOD	TEST STANDARD	DESCRIPTION	REQUIREMENTS
DIMENSIONAL STABILITY	ISO 5077	Pre-treated fabric 5 cycles according to the fabric manufacturer’s instructions.	Openwork fabric Max. ± 3 % warp/weft Knitted fabric Max. ± 5% length/width
LIMITED FLAME SPREAD	ISO 15025 Method A and/or B	Original and pre-treated fabric Method A (code A1): Application of the flame perpendicular to the tissue Method B (code A2) (optional): application of the flame on the edge of the fabric	Application of 10 ” flame: No specimens should ignite towards the top or to the edges, no formation of 5mm holes for procedure A1 and no formation of holes for procedure A2, no detachment of inflamed remains, post ignition t ≤ 2 ”, post incandescence allowed within the charred area during the test.
TENSILE STRENGTH	ISO 13934-1	Pre-treated fabric	≥ 400 N warp/weft
TEAR RESISTANCE	ISO 13937-2	Pre-treated fabric	Class 1: ≥ 15 N warp/weft Class 2: ≥ 20 N warp/weft
BURST RESISTANCE for knitted fabrics	ISO 13938-1 ISO 13938-2	Pre-treated fabric	Area 7.3 cm2 ≥ 200 kPa Area 50 cm2 ≥ 100 kPa
SEAM RESISTANCE	ISO 13935-2	Pre-treated fabric	≥ 225 N
RADIANT HEAT C	ISO 6942 METHOD B	Pre-treated fabric. Heat flow 20 kW/m2	RTHI VALUE RANGE 24
			Class 1 ≥ 7.0
			Class 2 ≥ 16.0
SMALL SPLASHES OF MOLTEN METAL	ISO 9150	Pre-treated fabric	NUMBER OF DROPS PER INCREMENT 40 K BACK OF THE SPECIMEN
			Class 1 min. 15
			Class 2 ≥ 25
VERTICAL CONDUCTIVITY	EN 1149-2	Pre-treated fabric Conditioning: minimum 24 h at 20 ± 2 ºC 85 ± 5% RH	VERTICAL RESISTANCE
VERTICAL CONDUCTIVITY	EN 1149-2		> 10^5 Ω

GARMENTS

GARMENT DESIGN:

Compliance with requirements according to ISO 13688
Welders’ protective clothing must be designed so that there is no electrical conduction from the outside to the inside.
The garments must completely cover the upper and lower torso, neck, arms and legs.
Pockets: They must comply with small splashes of molten metal and flammability.

SIZES

There must be an overlap between the jacket and the pants in the garment

DESIGN OF GARMENTS FOR PROTECTION AGAINST METAL SPLASHES

The sleeves of jackets and overalls, as well as the hems of trousers, overalls and dungarees must not be hemmed.
The outer pockets of jackets, trousers, overalls and bibs, except side pockets below the waist which do not form an angle greater than 10° with the side seam, must be covered by flaps at least 20 mm wider than the openings of the pockets
The overlapping seams on the outside of the garments must be facing down and secured in this position.
Closures should be designed with a protective flap on the outside of the suit. The maximum distance between the holes for the buttons should be 150 mm.

MARKING AND LABELLING

MARKED
- Marked according to ISO 13688
- Indicate Class 1 or Class 2 in addition to the levels of limited flame spread.
- When the garments contain parts of both classes, always classify the lower class.
- Mark with the following pictogram: