CIBA· CORNING 64 4 K+ 、Na+ 、Cl- 电解质分析仪以标本用量少、测定速度快、结果准确度好、仪器性能稳定等等优点深受同行和临床科室的欢迎。但是我们在四年多的使用中也遇到一些故障 ,并摸索出一些处理的方法 ,现总结如下 ,供使用该仪器的同道参考。1　“Cal Failed”(校标 The CIBA·Corning 64 4 K+, Na+, and Cl-electrolyte analyzers are well received by their counterparts and clinical departments for their advantages such as low sample volume, fast assay speed, good result accuracy, and stable instrument performance. However, we also encountered some problems in the use of more than four years, and found some ways to deal with, are summarized as follows, for the use of the instrument’s co-channel reference. 1 “Cal Failed”