ATW is a halogen free, RoHS, flame retardant tubing designed in closed and sensitive environments such as trains, ships and in underground mining where the of acid gas after fire must be minimised avoid consequential damage to computers, plc's and electronic control equipment. Being RoHS compliant means the product does not contain restricted substances such as Cadmium (Cd), Lead(Pb), Hexavalent Chrome (Cr6) and Mercury (Hg) RoHS is now a requirement in the automotive industry.