Pilot Study: Comparison with 5 L and 20 L proving tank

Project Description:

The objective of this comparison is to determine the degree of equivalence between the laboratories in the calibration of two proving tanks made of carbon fibber, volumes 5 L and 20 L . Gravimetric and /or volumetric method can be used for determination of the volume.

The reported volumes and associated uncertainties are to be used for the calculation of the Degree of Equivalence between the participating NMI and the comparison reference value.

CMI and IPQ will be responsible for the evaluation of the results.

Since the type of devices selected for this comparison are new to the participants, and some variability associated with their handling and operation may be expected, also on preliminary results done by owner VSL and the pilot laboratory CMI, it was decided to conduct the comparison as a pilot study.

These instruments present operator-related challenges that require participants to carefully consider measurement procedures, sources of uncertainty, and good measurement practice. One of the main objectives of this pilot study is to identify whether participants possess the necessary knowledge and skills to achieve reliable results, to determine where knowledge gaps exist, and to establish how these gaps can be addressed.