AS 4156.1.1:2018 PDF Download

The procedures for determining the float and sink properties of higher-ranking coal are described in AS 4156.1.1:2018. The standard outlines methods for gathering test samples as well as for assessing and presenting washability information. It is significant to highlight that the use of float and sink tests raises safety issues that are not addressed by this standard. Before conducting testing, it is the standard's user's responsibility to set up suitable safety and health procedures and take regulatory restrictions into account. The coal sample is divided into fractions of various densities, given as mass percentages of the entire sample, for float and sink testing. Usually, each fraction's ash content and other details are also mentioned.