This standard describes methods for sampling coal batches and for sample preparation. The standard describes both manual and mechanical sampling. The described methods are intended for obtaining samples for the determination of physical properties and chemical composition. The same basic principles apply to sampling and sample preparation for the examination of coal for physical properties. However, adjustments are often required in the practical implementation, especially the number and size of the handles.
NEN 3010-1991 history
1991NEN 3010-1991 Solid mineral fuels - Sampling and sample preparation of coal