Data of the characterisation of conventional 87Sr/86Sr isotope ratios in cement, limestone and slate reference materials based on an interlaboratory comparison study

This dataset represents the electronic supplementary material (ESM) of the publication entitled "Characterisation of conventional 87Sr/86Sr isotope ratios in cement, limestone and slate reference materials based on an interlaboratory comparison study", which is published in Geostandards and Geoanalytical Research under the DOI: 10.1111/GGR.12517. It consists of four files. 'ESM_Data.xlsx' contains all reported data of the participants, a description of the applied analytical procedures, basic calculations, the consensus values, and part of the uncertainty assessment. 'ESM_Figure-S1' displays a schematic on how measurements, sequences and replicates are treated for the uncertainty calculation carried out by PTB. 'ESM_Technical-protocol.pdf' is the technical protocol of the interlaboratory comparison, which has been provided to all participants together with the samples and which contains bedside others the definition of the measurand and guidelines for data assessment and calculations. 'ESM_Reporting-template.xlsx' is the Excel template which has been submitted to all participants for reporting their results within the interlaboratory comparison. Excel files with names of the the structure 'GeoReM_Material_Sr8786_Date.xlsx' represent the Rcon(87Sr/86Sr) data for a specific reference material downloaded from GeoReM at the specified date, e.g. 'GeoReM_IAPSO_Sr8786_20221115.xlsx' contains all Rcon(87Sr/86Sr) data for the IAPSO seawater standard listed in GeoReM until 15 November 2022.

本数据集为发表于《Geostandards and Geoanalytical Research》、DOI为10.1111/GGR.12517的论文《基于实验室间比对研究的水泥、石灰岩与板岩参考材料中常规87Sr/86Sr同位素比值表征》的电子补充材料（Electronic Supplementary Material，ESM）。
本数据集共包含四个文件。
'ESM_Data.xlsx'收录了所有参与实验室上报的全部数据、所采用分析流程的说明、基础计算结果、共识值以及部分不确定度评估内容。
'ESM_Figure-S1'展示了德国联邦物理技术研究院（PTB）开展不确定度计算时，对测量、序列及重复样的处理流程示意图。
'ESM_Technical-protocol.pdf'为本次实验室间比对的技术规程，该规程随实验样品一同发放给所有参与方，其中除其他内容外，还明确了被测量的定义以及数据评估与计算的指导准则。
'ESM_Reporting-template.xlsx'为本次实验室间比对中要求所有参与方上报结果时使用的Excel模板。
此外，命名格式为'GeoReM_Material_Sr8786_Date.xlsx'的Excel文件，代表于指定日期从GeoReM数据库下载的特定参考材料的Rcon(87Sr/86Sr)数据。例如，'GeoReM_IAPSO_Sr8786_20221115.xlsx'包含了截至2022年11月15日GeoReM数据库中收录的IAPSO海水标准物质的全部Rcon(87Sr/86Sr)数据。