The need for reflective tapes in critical conditions are these days obvious, and all the standards provide transparency and necessary regulations. There are different standards for virtually any kind of work and situations, and at loxy we put our pride in meeting and exceeding the requirements of all relevant standards.
But just as important as performance requirements, LOXY aims to minimize the impact on our environment. There is no reason not to let personal safety and environmental thinking go hand in hand.
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Explore the relevant standards
The EN1149 standard relates to a number of performance requirements relating to antistatic clothing that suppresses static charge to prevent sparking which may lead to fire or explosion. EN1149-3 specifically relates to the test methods for the measurement of electrical charge decay.
Defining the EN1149 Certification
Each certification uses a standard picture or pictogram to allow for easy identification on labeling and tech or data sheets. The standard pictogram for EN1149 is a lightning bolt above the text EN 1149 and covered the requirements for clothing that can conduct electricity. This clothing, footwear included, created part of a completely grounded system to prevent sparks or static discharge.
This type of clothing is typically worn by professionals and companies who must adhere to ATEX guidelines. It should be noted that the clothing should not be worn in oxygen-rich environments and is not intended to provide protection against the risk of electric shock.
Fabrics for clothing worn in explosion-hazard environments must be compliant to either EN1149-1 or EN1149-3 testing.
EN1149-1: Electrostatic Properties of Protective Clothing
The fabric is tested to release its electrostatic charge via conduction. The test is done to measure the surface resistance, which must be less than 5 x 1010 Ω. Note that electricity can be conducted through homogenous or heterogeneous materials. If the materials being tested are heterogeneous, then static charges must be release through a grid of conductive fibers (such as metal or carbon) with a max measurement of 10mm x 10mm.
EN1149-3: Electrostatic Properties of Protective Clothing
The fabric is tested to release its electrostatic charge into the air, not through conduction. This standard utilizes a test method that measures the amount of time it takes for a static electrical charge to completely dissipate. The electrostatic discharge of clothing is measured by t50% < 4 s or S > 0.2.
Additional Requirements Set in the EN1149-3 Standard
• Any material carrying an electrical charge must be covered from the outside (such as metal buttons)
• Non-conductive elements are permitted provided they are permanently attached and do not use removable elements (Velcro, metal or magnetic backings for badges, etc.)
• Shoes that conduct electricity are required to meet compliance.
• Garments must be designed in a way that outer material remains in contact with skin.
Notation on ATEX and EN 1149-3
ATEX is considered to be a guideline for businesses and industry, not a standard. The ATEX guidelines were developed for businesses or any industry where there is a notable risk for explosion. This includes companies working with dry dust grains, flour, chemicals. The guidelines include types of equipment, installation and handling of product, security but also includes recommendations and guidelines for personal protective equipment (PPE). Any clothing certified according to EN1149 standards is in compliance with the guidelines set forth by the ATEX model.