This standard lists substances whose use in materials and components are prohibited, either limited or subject to any kind of regulation in the interests of global welfare, personnel and end user health and environmental safety. The aim of this specification is to restrict the usage of the substances listed, as well as to facilitate chemicals management and compliance with current and future regulations.Articles (i.e. materials, components, assemblies, modules) delivered to and used at Premium Sound Solutions must be free of the “Restricted Substances” as mentioned in this list. “Relevant Substances” have to be declared and minimized where possible.