HAZCHEM Catalogue - Flipbook - Page 174
EN ISO 11611
Protective Clothing for use in Welding & Allied Processes
EN 11612 is the European Norm for PPE used in Welding or related processes where there is a
risk of contact with flames, radiant heat from the arc, risk of splatter (small splashes of molten
metal) and risk of electric shock by short term, accidental contact with electrical conductors (at
voltages up to approximately 100 v DC in normal conditions of welding).
There are two different classes within this standard, both with different levels of protection. The Welding specification
of the fabric is tested with 15 Drops (to achieve Class 1) or 25 Drops (to achieve Class 2) of molten metal. There are
also design critical specifications that must be adhered with this type of garment including pocket flap overlaps and
fastening systems.
Class 1
Protection against less hazardous welding techniques and
situations, causing lower levels of splatter and radiant heat.
Class 2
Protection against more hazardous welding techniques and
situations, causing higher levels of splatter and radiant heat.
EN ISO 20471
Hi-Visibility Clothing
This standard specifies the requirements for clothing designed to visibly emphasize the wearer’s
presence in hazardous work areas during the day and at night and where there is a risk from
moving vehicles or processes.
There are three classifications related to risk assessment and each class requires that minimum areas of Hi-Visibility
materials are incorporated in the garment. These minimum areas comprise of background material (the main fabric
colour) and retroreflective material (generally reflective tape). This area is measured on the smallest garment in the
product range, with all fasteners adjusted to the smallest configuration possible.
Combined Certification for Class 3
If a single Hi-Visibility garment does not meant Class 3 when worn alone, they can sometimes be combined to reach
the highest class of certification. For example, if a Jacket is only Class 2 when worn alone, when worn with a Class 1
Trouser, it can reach Class 3. When this is the case, this is stated within the User Information or Manufacturers technical
information sheets provided with the garments. Users should also be aware that due to surface area constraints on
background and reflective tapes, that some smaller sizes within a single product can be certified to lower Classification
than the core product range. Where this is the case, the care label will clearly state the classification to which it is
certified.
Use of Logos on Hi-Vis Garments
Logos can be applied to these garments providing the minimum area is not reduced or compromised due to their
presence. Particular care should be taken on smaller sizes of garments.
Material
Measurements in m2
Class 3 Garments
Class 2 Garments
Class 1 Garments
Background Material
0.80
0.50
0.14
Retroreflective Material
0.20
0.13
0.10
Combined Performance Material
n/a
n/a
n/a
NOTE: The clothing class is determined by the lowest area of visible material
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