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In the EN 1149-3 standard, which is a European standard, the properties of clothing that protect against electrostatic discharge in explosion risk areas (ATEX environments) such as petrochemical refineries and fuel distribution companies are explained and test methods are presented. This standard has been published in our country by the Turkish Standards Institute (TSE) with the following title: EN 1149-5 Protective clothing - Electrostatic properties - Part 5: Material performance and design requirements.
According to the ATEX directive issued for the protection of employees who are likely to be exposed to the risk of explosive atmospheres, working clothes made of materials that do not cause electrical discharges that can ignite the explosiveshould be provided. Therefore, the outer fabric of these garments should be made of antistatic materials and components.
The EN 1149-5 standard describes electrostatic requirements for safety clothing used in areas where there is a danger of flash electrostatic discharge. The test method in this standard describes the requirements for the materials and design of safety clothing with electrostatic properties to protect workers as best as possible.
Antistatic personal protective equipment with EN 1149-5 certification proves that it meets the EN 1149-1 or EN 1149-3 performance requirements.
Such fabrics direct electrostatic charges thanks to their linear or grid-shaped conductive fibers. The distance between conductive fibers in one direction should not be more than 10 mm anywhere. The outer antistatic layer should permanently cover all other non-antistatic layers. The antistatic coating must be guaranteed in any case. Conductive accessories such as zippers and buttons are also permitted, provided they are covered with an outer antistatic layer. In addition, labels or retroreflective strips must be permanently attached.
These items should be worn outside of the ATEX environment. In addition, people using these clothes must cover the clothing completely and make sure that the grounding is provided. For example, electrostatic shoes should be worn with resistance to distribute the load on the floor.
With the experience gained over many years, our organization also provides EN 1149-5 protective clothing, electrostatic properties, material performance and design requirements testing services to the demanding enterprises within the framework of laboratory services of the materials with a trained and expert staff.
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