Key comparison (KC) CCQM-K18.2016 was performed to evaluate the degree of equivalence between pH measurement results on an unknown carbonate buffer reported by participating National Metrology Institutes and Designated Institutes (NMI/DIs). The participants used the highest metrological method existing at their institution. The nominal buffer pH was 10.0 and was determined only at 25 °C. Good agreement of the results is demonstrated by most participants.

Main text

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The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

中文翻译：

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关键比较CCQM-K18.2016：碳酸盐缓冲液的pH

进行了关键比较（KC）CCQM-K18.2016，以评估由参与的国家计量研究所和指定研究所（NMI / DIs）报告的未知碳酸盐缓冲剂的pH测量结果之间的等效程度。参加者使用所在机构现有的最高计量方法。标称缓冲液的pH为10.0，仅在25°C下测定。大多数参与者证明了结果的一致性。

正文

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根据CIPM互认安排（CIPM MRA）的规定，最终报告已由CCQM进行同行评审，并批准由CCQM发布。