June 2018, our workwear fabric CleanStatic-240 has been successfully tested EN 1149-5 (Protective clothing. Electrostatic properties) standard.
EN 1149-5 is European standard for garments that protect against electrostatic discharge where there is a risk of explosion e.g. in oil refineries.
It is part of a series of standards for test methods and requirements for electrostatic properties of protective clothing.
EN 1143-3 is a test method, that uses induction charging to evaluate how fast a fabric discharge, i.e. looses its electrostatic charge via air. According to the Standard the charge decay value should be no more than 4 seconds according to test method EN 1149-3. It means that antistatic fabric should loose its electrostatic charge in less than 4s.
The testing was done at independent international laboratory AITEX (Spain).
CleanStatic-240 is our new Antistatic fabric. It is made with 65% Polyester, 33% Cotton and 2% Antistatic carbon fibers.
This Antistatic fabric has twill weave and addition of Belltron antistatic yarn gridlocked in the surface of fabric. To prevent Electrostatic Discharge (ESD) sparks, antistatic fibers safely discharge static electricity. CleanStatic-240 is designed for antistatic clothing for CleanRooms.
CleanStatic-240 has been successfully tested to the following test:
Charge decay, according EN 1149-3:2004 (after 5 washing cycles at 400C, ISO 6330:2012, Tumble Dry, F) – performance level – PASS
According to Standard EN 1149-5:2008 for the induction charge method (EN 1149-3:2004) the requirements are:
t50< 4 s or S > 0,2
During the testing, CleanStatic-240 has demonstrated the following results:
- S = 0,90 – Shielding factor – PASS
- t50 = 0,01 – Decay half time – PASS
It means that when tested, CleanStatic-240 fabric dissipated (lost) its electrostatic charge in less than 0,01 second. So it’s 400 times better, than EN 1149-5 requirements.
More info about CleanStatic-240 workwear fabric and its properties you can find on the product page.