Anti-static (Most common - EN ISO 20345:2011)
Anti-Static footwear has an electrical resistance between 0.1 and 1000 megaohm (MΩ), measured according to EN ISO 20344:2011. They conduct static electricity through the insole, linings, outsole and into the ground, helping regulate the build-up of electrical charge on a person’s body and help protect against the dangers of static build-up in the workplace.
Anti-Static is very widely available in the marketplace due to it being the main specification for electrical resistance in EN ISO 20345:2011 and its very wide resistance range.
ESD (61340-5-1:2016 to 100 megaohm - normal standard)
ESD has the same benefit as Anti-Static, however its resistance range is much lower. ESD footwear is manufactured to EN 61340-5-1:2016 has a lower resistance range to prevent uncontrolled electrostatic charges.
They have an electrical resistance between 0.1 and just 100 megaohm (MΩ), 1/10th of the level required for anti-static, measured according to EN ISO 20344:2011.
Footwear which achieves this standard is marked with ESD.
Rock Fall do not manufacture ESD certified footwear to have a resistance range of 100 megaohm.
ESD (Lower resistance standard to 35 megaohm - former EN 61340-5-1:2007)
Until its recent revision, the European ESD standard had a stricter resistance range of just 35 megaohm, the revision number was EN 61340-5-1:2007.
Rock Fall are continuing to test ESD footwear to the lower resistance range however it will be marked with EN 61340-5-1:2016. This is similar to the CI test conducted on our cold temperature boots which we test to -40°C, although the standard is -17°C.