The BIPM is pleased to announce the publication of the first key comparison report embedding machine-readable (XML and JSON) versions of the document. Use of the PDF/A-3 standard in this way was originally suggested by METAS (Switzerland) in the context of Digital Calibration Certificates (DCC).[1] The recent update of the BIPM.RI(II)-K1.Ce-139 comparison – using the BIPM’s International Reference System (SIR) for radionuclide metrology – provided an opportunity to introduce this approach for the first time in reporting a key comparison.
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