Explanatory notes

Key

Standard (STD) and Limited (LTD)

These categories cover the majority of NICNAS certificate assessments, including:

  • all low molecular weight chemicals,
  • all polymers prior to the introduction of the Synthetic Polymer of Low Concern category, and
  • all polymers since then which do not qualify as Synthetic Polymers of Low Concern.

Limited assessments are for chemicals:

  • being introduced at less than 1 tonne per annum,
  • for polymers of Number Average Molecular Weight greater than 1000 imported at greater than 1 tonne per annum,
  • site limited polymers at <10 tonnes per year or
  • chemicals for R&D at between 50 kg and 1 tonne per year.

For Limited assessments, the data requirements are lower than for Standard assessments.

Polymers of Low Concern (PLC)

This category covers polymers which meet low concern criteria for human health and the environment.

Extensions of Original Certificates (EX)

This category covers chemicals which have previously been assessed and the certificate has been extended to cover other companies wishing to introduce the chemical, with the agreement of the original notifier

Secondary notification (SN)

This category covers chemicals which have previously been assessed and there has been a change in circumstances that has necessitated a reassessment of particular aspects of the chemical.

Last update 29 July 2018