Definitions
Article 2
For the purpose of this Decision, the following definitions shall apply: (1) ‘material’ means a solid, semi-solid or liquid that is used for the manufacturing of a product that is: (a) an organic composition prepared from one or more starting substances; or (b) a cementitious composition prepared from one or more constituents; or (c) a metallic, enamel, ceramic or other inorganic composition; (2) ‘monomer’ means a substance which is capable of forming covalent bonds with a sequence of additional like or unlike molecules under the conditions of the relevant polymer-forming reaction used for the particular process; (3) ‘organic material’ means a material that mainly consist of carbon-based substances; (4) ‘monomer unit’ means the reacted form of a monomer substance in a polymer; (5) ‘polymer’ means a substance consisting of molecules that are characterised by the sequence of one or more types of monomer units ant that are distributed over a range of molecular weights wherein differences in the molecular weight are primarily attributable to differences in the number of monomer units comprising the following: (a) 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; (b) less than a simple weight majority of molecules of the same molecular weight; (6) ‘polymerised part’ means the part of a substance composition consisting of molecules characterised by the sequence of one or more types of monomer units. Molecules such as dimers, trimers contribute also to the polymerised part. However, the term ‘polymerised part’ does not cover unreacted monomer or unreacted other reactants; (7) ‘pre-polymer’ is a substance resulting from a polymerisation-type of reaction and that is further reacted into a final polymer in a material or product; (8) ‘organic cementitious constituent’ means an organic substance that is used in the manufacture of cementitious materials; (9) ‘cement’ means a finely ground inorganic material which, when mixed with water, forms a paste that sets and hardens by means of hydration reactions and processes and which, after hardening, retains its strength and stability even under water; (10) ‘cementitious material’ means a material that contains a hydraulic cement in sufficient proportion to act as the main binder by forming a hydrate structure which governs the performance of the material; (11) ‘non-intentionally added species’ means either one of the following: (a) an impurity of a starting substance or organic cementitious constituent or composition; (b) a reaction product or a degradation product of a starting substance or organic cementitious constituent that forms during the processing or use of the material; (c) a reaction product or a degradation product of a starting substance or organic cementitious constituent that forms in contact with water during the use of the material; (12) ‘metallic material’ means a metal or metal alloy used either in bulk form or as metallic plating; (13) ‘ceramic materials’ means inorganic poly- or single crystalline, non-metallic solid materials subjected to high temperature in manufacture; (14) ‘enamel’ means a material that is a vitreous material obtained by melting at temperatures higher than 1 200 °C and fritting of a mixture of inorganic substances; (15) ‘maximum tolerable concentration at the tap’ (MTC tap ) means the maximum permitted concentration of a substance transferred from a specific material into water intended for human consumption.