Final report on CCQM-K19.2018 key comparison on pH of an unknown borate buffer

被引：1

作者：

Asakai, Toshiaki ^{[1
]}

Maksimov, Igor ^{[1
]}

Prokunin, Sergey ^{[2
]}

Vengina, Daria ^{[2
]}

Oganyan, Narine ^{[2
]}

Dobrovolskiy, Vladimir ^{[2
]}

Daniel, Nagy ^{[3
]}

Zsofia, Szilagyi ^{[3
]}

Dimitrova, Lyudmila ^{[4
]}

Bezeva, Katya ^{[4
]}

机构：

[1] Natl Metrol Inst Japan NMIJ, 1-1-1 Umezono, Tsukuba, Ibaraki 3058563, Japan

[2] All Russian Sci Res Inst Phys Engn & Radiotechn M, VNIIFTRI, Mendeleyevsk 141570, Russia

[3] Govt Off Capital City Budapest BFKH, Nemetvolgyiut 37-39, H-1124 Budapest, Hungary

[4] Bulgarian Inst Metrol BIM, 52-B GM Dimitrov, Sofia 1040, Bulgaria

来源：

METROLOGIA | 2021年 / 58卷 / 1A期

关键词：

D O I：

10.1088/0026-1394/58/1A/08020

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This key comparison CCQM-K19.2018, as a repetition of the previous study CCQM-K19 from 2005, was performed to evaluate the degree of equivalence of measurement procedures of participating National Metrology Institutes (NMIs) and Designated Institutes (DIs) for the determination of pH of borate buffer solutions. The nominal pH value of the buffer was 9.2 at 25 °C and the suggested measurement temperatures were 5 °C, 15 °C, 25 °C, 37 °C and 50 °C. Good agreement of the results is demonstrated by most participants. © 2021 Institute of Physics Publishing. All rights reserved.

引用

页数：4

共 50 条

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