monomer unit
Definitions over time (1)
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23/11/2007 – 02/01/2017 Article 3, Regulation (EC) No 1907/2006 (REACH) Scope: Whole act
polymer: means a substance consisting of molecules characterised by the sequence of one or more types of monomer units. Such molecules must be distributed over a range of molecular weights wherein differences in the molecular weight are primarily attributable to differences in the number of monomer units. A polymer comprises the following: a simple weight majority of molecules containing at least three monomer units which are covalently bound to at least one other monomer unit or other reactant; less than a simple weight majority of molecules of the same molecular weight. In the context of this definition a ‘monomer unit’ means the reacted form of a monomer substance in a polymer;
Earlier definition records in this act (1)
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- Article 3 Historical · definitions end 01/01/2020
Used in (0 places in 0 provisions on 12/11/2026)
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