The Environmental Risk Management Authority has issued group standards for water treatment chemicals.

These group standards are issued in accordance with the requirements of Part 6A of the Hazardous Substances and New Organisms (HSNO) Act 1996. The group standards came into force on 1 July 2006.

The Water Treatment Chemicals Group Standards have been created for products that are used in the treatment of water. This includes algaecides, antifoams, biocides, boiler water chemicals, coagulants, disinfectants, flocculants, neutralizing agents, oxidants, oxygen scavengers, pH conditioners, resin cleaners, scale inhibitors and any other substance involved in the treatment of water. This also includes raw materials used in the manufacture of water treatment chemicals.

Amendments to Group Standards (July 2010):The group standards were amended as at 1 July 2010 via the Labelling Requirements in Group Standards (Amendment) Notice 2010 New Zealand Gazette 3 June 2010. This amendment involves the removal of the expiry date for the use of alternative labelling provisions for group standards, specifically the use of labels that meet the relevant current labelling requirements of Australia, USA, Canada, the European Union or any other country as approved by the Authority.

Water Treatment Chemicals,Poly Aluminium Chloride,Polyacryamide,PolyDADMAC, PolyDCD, Polyamine,Polyferric Sulfate, Biocides,Retention Aids and Drainage Aids, Fixatives, Wire Passivator,Surface Size Agent,