The Corning Archaeological Reference Glasses are widely used as standards in the chemical analysis of archaeological and historical glasses, as their compositions were designed to approximate those of major glass types in antiquity. Since their development in the 1960s, their compositions have been revisited and updated. This paper provides a brief overview of the Corning glasses, and addresses two of the last three elements to be re-evaluated: the recommended values for the concentrations of SO 3 and Cl were, until now, based on theoretical values. Data for these elements were collected using electron microprobe, and used together with published data to suggest new values. Finally, a complete list with the most up-to-date compositions for the four Corning glasses is compiled for the benefit of other analysts.

中文翻译：

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康宁考古参考眼镜：“旧”作品的新价值

康宁考古参考玻璃被广泛用作考古和历史玻璃化学分析的标准品，因为它们的成分被设计为近似古代的主要玻璃类型。自1960年代发展以来，他们的作品已被重新审视和更新。本文提供了康宁玻璃的简要概述，并介绍了要重新评估的最后三个元素中的两个：到目前为止，SO 3和Cl浓度的推荐值均基于理论值。使用电子探针收集这些元素的数据，并与已发布的数据一起使用以建议新的值。最后，为了使其他分析师受益，编制了四个康宁玻璃杯的最新组成的完整清单。