Double Glazing Manufacturers
IGUMA (Insulated Glass Unit Manufacturers Association) is a group of Glass Processors who have agreed to an (independently verified) testing regime. Your IGUMA Member supplier can provide you with a copy of the current compliance certificate for the product you are purchasing.
NZS4223.2:2016 requires IGU to be tested and demonstrate compliance. IGUMA members who comply with IGUMA-BS EN1279 testing also comply with the requirements of Section 5 of NZS 4223.2:2016.