This Order names a specific type of refractory 'gunning' mixture (with precise chemical composition thresholds) as goods to which item 50 of Part III, Schedule 4 of the Customs Tariff Act 1995 applies, effective 11 March 2009. It was made by a delegate of the Chief Executive Officer under section 269P and remains until revoked under sections 269SC or 269SD.
Importers of those exact mixtures must demonstrate they meet the listed composition tests (SiO2 ≥35%, Al2O3 ≥34%, CaO ≥10%, Fe2O3 ≥3%) for the Schedule 4 treatment to apply; that affects how tariff law treats those imports.