Sonora-185AS certified to EN 1149-5

July 2019 our modacrylic flame retardant fabric Sonora-185AS has been successfully tested EN 1149-5 (Protective clothing. Electrostatic properties) certificate.

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).

Flame retardant fabric Sonora-185AS is a light protective fabric for hot climate made of 80% cotton, 19% polyester and 1% antistatic in plain 1/1 weave. It is a good choice for flame retardant shirts or other light flame retardant clothing.

Sonora-185AS has been successfully tested to the following test:
CHARGE DECAY (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, Poseidon-300 has demonstrated the following results:

  • S = 0,61 – Shielding factor – PASS
  • t50 = < 0,01 – Decay half time – PASS

It means that when tested, Sonora-185AS 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 Sonora-185AS fr fabric and its properties you can find at the product page