Keith Buttemer of Scanmin Africa gave two presentations entitled “Understanding DUET, Natural gamma, PGNAA, PFTNA XRF and Nita” (methods employed for on-line coal analysis) followed by “Case study of mechanical samples collected compared to the analyser and dealing with the analyser and inter laboratory statistical analysis”. This was followed by Pieter Erasmus who gave a presentation on “Selective laboratory sampling data and the use of it in the calibration and verification of on line analyser dynamic performance”. Scanmin Africa sponsored the refreshments enjoyed afterwards.