National comparison on verification of fuel dispensers
IPQ - Instituto Português da Qualidade, Rua António Gião, 2,, 2829-513, Caparica, Portugal
a Corresponding author: email@example.com
In order to check the agreement of results and procedures in the field of verification of fuel dispensers by the verification bodies designated by the Portuguese Institute for Quality (IPQ), a national comparison between these entities was performed for the first time. A correction for reference temperature was performed to the results presented by the participants, maximum flow at 20 L and minimum flow at 5 L, using petrol and diesel as verification liquid. The analysis of the results, using the normalized error statistics, evidenced satisfactory values, for the majority of the national entities. The uncertainty components and values were very similar within the participants for the minimum flow at 5 L. For higher volume, the uncertainties were very dependent on the type of volume standard used.
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