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APPENDIX 1
GENERAL INFORMATIONS OR ABBREVIATIONS OF THE MAIN TERMS
USED IN THIS DOCUMENT

Monomers and other starting substances

"Monomer and other starting substance", means any substance used in the manufacture of a
macromolecule, which constitutes the repeating unit of a polymer chain or polymer network of any
substance used in the manufacture of a plastic for food contact application. It also includes substances
used to modify existing natural or synthetic macromolecular substances. According to Directive
2002/72/EC, Annex 2, paragraph 1, the following substances are included in this definition:
"-
substances undergoing polymerisation, which include polycondensation, polyaddition or any
other similar process, to manufacture macromolecules;
-
natural or synthetic macromolecular substances used in the manufacture of modified
macromolecules, if the monomers or the other starting substances required to synthesise them
are not included in the list;
-
substances used to modify existing natural or synthetic macromolecular substances."
Although the definition and the examples seem very precise, some difficulties arise in the
identification of "monomers and other starting substances" in practice. Therefore, it is recommended to
read carefully the explanation given in Practical Guide, Chapter I, Section 3, paragraph 2.

Additives

See also paragraph 3 of the explanatory note of this document.
The list set out in the Table shall contain all the other substances not included in the definition of
monomers and other starting substances and not included in the definition of aids to polymerisation
(see below).
Therefore this list shall include:
a)
substances which are incorporated into plastics to achieve a technical effect in the finished
product; they are intended to be present in the finished articles ("additive");
b)
substances used to provide a suitable medium in which polymerisation occurs or substances
which directly influence the formation of polymers (conventionally these substances will called
"polymer production aids")