Development of a Standardised Method for Measuring Manganese Exposure by A Sánchez Jiménez and others. Institute of Occupational Medicine Research Report TM/10/04. (This study compares the concentrations of inhalable and respirable Manganese collected with three airborne samples: the CIS (Conical Inhalable Sampler), IOM ( the Institute of Occupational Medicine) and the Higgins Dewell cyclone.)