Abstract This paper presents predictive models to determine spontaneous combustion liability of carbonaceous materials (coals and coal-shales) using statistical analysis. The intrinsic properties and spontaneous combustion liability index were determined by testing 14 coals and 14 coal-shales from Witbank coalfields. South Africa. The relationship between these intrinsic properties (o... https://chefesquipmenters.shop/product-category/paddles/