This database is a collection of all hazardous single chemicals that can be used in products assigned to a group standard. You can search the NZIoC by substance name or CAS number. The database contains the substance name, its CAS number and approval status. We must be notified of any product containing components not listed on the NZIoC. Aotearoa New Zealand recently adopted the GHS system of hazard classification. This means that the approval status of many substances has changed and is now covered by a group standard.