This standard specifies apparatus, reagents, sampling, sample preparation, terms and definitions, basic procedures, loss on ignition and reporting of results applicable to the following standards. Standards used for the chemical analysis of refractory products and raw materials by wet chemical, AAS and ICP: EN ISO 10058 Parts 1, 2 & 3 - Magnesites & Dolomites; EN ISO 20565 Parts 1, 2 & 3 - Chrome bearing refractory products and chrome bearing raw materials; EN ISO 21079 Parts 1, 2 & 3 - Refractories containing 5% to 45% of ZrO2; EN ISO 21587 Parts 1, 2 & 3 - Aluminosilicate refractory products.