WebDec 18, 2008 · The Polymer Working Group accepts this approach for notified polymers and concludes from this position that the monomers or any other substance from which the notified polymers are derived, are exempted from registration under REACH, until the polymer reaches the next tonnage level for which the polymer was notified. Once a polymer WebOct 19, 2024 · For the definition of a polymer as a component of a plastic, the Directive refers to the REACH regulation (European Parliament and Council 2007) (Annex 3.1 Definition – Plastic), here the terms polymer (Annex 3.2 Definition – Polymer) and the term substances which occur in nature are
How to decide whether a substance is a polymer or not and how ...
WebOct 15, 2016 · REACH use descriptor system is a system developed by ECHA to facilitate chemical risk assessment and supply chain communication. Under REACH, registrants who are required to carry out an exposure assessment have to address all identified uses of the substance and communicate the registered uses to downstream users. WebJul 17, 2011 · definition of a polymer is Gel Permeation Chromatography (GPC). Guidelines on the determination of the number average molecular weight (Mn) and molecular weight distribution using GPC are available in the OECD TG 118 (1996). The best example available to explain the definition of a polymer can be taken from ECHA guidance document on … how do i download prime video on my laptop
European Community number - Wikipedia
WebThe European Community number ( EC number) is a unique seven-digit identifier that was assigned to substances for regulatory purposes within the European Union by the European Commission. The EC Inventory comprises three individual … Webregulations REACH. To finally initiate the polymer registration process, currently the European Commission (EC) is developing a proposal on how and which polymers to … WebAug 13, 2024 · Polymers Requiring Registration (PRR) Polymers are currently exempted from registration under Regulation (EC) No. 1907/2006 of the European Parliament and of … how do i download programmes from iplayer