Document ID: chunk:federal_register_of_legislation:F2024C00679:reg:5:p5
Version: federal_register_of_legislation:F2024C00679
Segment Type: reg
Provision Reference: reg 5 (pt 5/6)
Character Range: 26321–29107

substituent.
polymer means a chemical that consists of molecules that:
 (a) are characterised by the sequence of one or more types of monomer units; and
 (b) are distributed over a range of molecular weights where the difference in molecular weights is primarily attributable to differences in the number of monomer units; and
 (c) greater than 50% by weight of which have a sequence of at least 3 monomer units covalently bound to at least one other:
 (i) monomer unit; or
 (ii) molecule that is linked to one or more sequences of monomer units but cannot, under the conditions of the relevant reaction used for the particular process of polymer formation, become a repeating unit in the polymer structure.
polymer molecular weight details, of an industrial chemical that is a polymer, means the following:
 (a) the number average molecular weight of the industrial chemical;
 (b) the weight average molecular weight of the industrial chemical;
 (c) the polydispersity index for the industrial chemical;
 (d) the percentage (by mass) of molecules with a molecular weight that is less than 1,000 g/mol;
 (e) the percentage (by mass) of molecules with a molecular weight that is less than 500 g/mol.
polymer of low concern has the meaning given by Schedule 2.
potentially cationic: a chemical is potentially cationic if the chemical is likely to become cationic in an aquatic environment that has a pH value greater than 4 and less than 9.
pre‑introduction report, for an industrial chemical, means a report for the industrial chemical prepared and given to the Executive Director in accordance with section 97 of the Act, including such a report as varied in accordance with section 98 of the Act.
radioactive chemical means a chemical that:
 (a) is a controlled material (within the meaning of the Australian Radiation Protection and Nuclear Safety Act 1998); and
 (b) is a nuclide mentioned in the table in Part 1 of Schedule 1 to the Australian Radiation Protection and Nuclear Safety Regulations 2018; and
 (c) has an activity concentration value (within the meaning of the Australian Radiation Protection and Nuclear Safety Regulations 2018) greater than the activity concentration value for the nuclide set out in the table in Part 1 of Schedule 1 to those Regulations.
REACH Regulation means Regulation (EC) No. 1907/2006 of the European Parliament and of the Council of 18 December 2006 on the Registration, Evaluation, Authorisation and Restriction of Chemicals.
reactant, in relation to a polymer, means a chemical (including a monomer) that is used in the polymer‑forming reaction to become chemically a part of the polymer composition.
reactive functional group means an atom, or an associated group of atoms, in an industrial chemical that is intended, or may reasonably be