2017
DOI: 10.1088/0026-1394/54/1a/08002
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Final report of the key comparison APMP.QM-K91: APMP comparison on pH measurement of phthalate buffer

Abstract: The APMP.QM-K91 was organised by TCQM of APMP to test the abilities of the national metrology institutes in the APMP region to measure a pH value of a phthalate buffer. This APMP comparison on pH measurement was proposed by the National Metrology Institute of Japan at the APMP-TCQM meeting held September 22–23, 2014. After approval by TCQM, the comparison has been conducted by NMIJ. The comparison is a key comparison following CCQM-K91. The comparison material was a phthalate buffer of pH around 4.0 and the me… Show more

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“…Ishikawa diagram[2] Results of pH measurements of phthalate buffer at 298 K compared with APMP.QM-K91[18] …”
mentioning
confidence: 99%
“…Ishikawa diagram[2] Results of pH measurements of phthalate buffer at 298 K compared with APMP.QM-K91[18] …”
mentioning
confidence: 99%