Extensive characterisation of the two hygrometers has been undertaken over their expected ranges. In the case of NML, it was decided that investment in a new hygrometer with a wider range and improved reproducibility would be sought. This was successfully achieved and the new hygrometer is currently being evaluated.In the case of IPQ, the initial investigation of the hygrometer has been completed and its adequacy for the intended range is currently being evaluated.Training actvities have not yet been initiated.The trilateral comparison will be initiated once the previous stages have been completed.
Progress Report 21.02.2015
INTA has continued to provide traceability to IPQ via the characterization of the transfer standard in the range from -30 ºC to +70 ºC. In 2014 no measurements were performed on instruments from NSAI.Assistance has been provided in optimization of measurement procedures, contributions to CMC and troubleshooting.