All our ESD products are tested and certified acc. to DIN EN 61340-5-1. Excerpt of this regulation: " The resistance between all areas of the seating furniture that could contact the human body and the floor will have to be < 10ᴵ° Ohm" Conductive, ergonomically shaped seats and backs made of polyurethane, fabric and imitiation leather coveringss, conductive metal parts as well as conductive castors, gliders and plastics are the significant characteristics of our ESD assortment. For your safety we test each sit-stand individually acc. to the DIN EN 61340-5-1 before delivery and print out a testing protocol. This protocol will be packed with each product.