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CMCs Chemistry (1)
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aqueous pH buffer (1)
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Belarus, BelGIM (Belarussian State Institute for Metrology)
Complete CMCs in Chemistry for pH for Belarus (.PDF file)
Matrix or material Dissemination range of measurement capability Range of certified values in reference materials
pH Absolute expanded uncertainty
(k = 2, 95%)
pH Absolute expanded uncertainty
(k = 2, 95%)
aqueous pH buffer 6.83 to 6.89 0.007 to 0.009 6.828 to 6.891 0.007 to 0.009
Mechanism(s) for measurement service delivery: COO-QM-BelGIM-2004: Disodium hydrogen phosphate + potassium dihydrogen phosphate. Calibration
Uncertainty convention 1.
Approved on 06 December 2011.
Internal NMI service identifier: BelGIM/COO-QM-BelGIM-2004