globalCOAL
The tables below summarise the coal quality specifications as listed in SCoTA. ... Volatile Matter Max (ADB) 32.0%: Ash (ARB) 23.0% Max: Sulphur (ADB) 1.0% Max: Hardgrove Grindability Index (HGI) 45 – 70: Nominal Topsize: 50 mm: IDT: Min 1,200 °C in a reducing atmosphere: Chlorine (DB)