# Commission Regulation (EU) No 1006/2011 of 27 September 2011 amending Annex I to Council Regulation (EEC) No 2658/87 on the tariff and statistical nomenclature and on the Common Customs Tariff, Division 4: The expression ‘copolymers’ covers all polymers in which no single monomer unit contributes 95 % or more by weight to the total polymer content.

Extent: E+W+S+N.I.

For the purposes of this chapter, except where the context otherwise requires, copolymers (including co-polycondensates, co-polyaddition products, block copolymers and graft copolymers) and polymer blends are to be classified in the heading covering polymers of that comonomer unit which predominates by weight over every other single comonomer unit. For the purposes of this note, constituent comonomer units of polymers falling in the same heading shall be taken together.
If no single comonomer unit predominates, copolymers or polymer blends, as the case may be, are to be classified in the heading which occurs last in numerical order among those which equally merit consideration.

---
Source: https://www.legislation.gov.uk/eur/2011/1006/annex/I/chapter/39/annotations/1/annotation/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-1006/annex-I/chapter-39/annotations/1/annotation/4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.