OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 744 Dust sampling

Sampling accumulated coal dust is the only means available to accurately assess the potential for coal dust explosions. It is important to prevent layering of coal dust on top of rock dust because explosions tend to lift only the top few millimetres of the coal dust/rock dust layer. During an explosion, the underlying rock dust may not be capable of quenching an explosion flame front. The sampling procedure used must be acceptable to the Director. All sampling and subsequent test results must be recorded at the mine site.