铬标准溶液主要用来配制实验室工作标准，绘制校正曲线。

本标准溶液以重铬酸钾在超净实验室中准确配制并分装于20 毫升安瓿中。配制完成后使用火焰原子吸收法对其进行了多次重复测量，结果表明，测量值与配制值一致。

    本标准溶液最好在阴凉处保存。

    安瓿中铬的浓度值如下：

     Standard solution is used to prepare the working standard in laboratory.

     This standard solution was accurately prepared in super-clean laboratory with highly pure K₂Cr₂O₇ and sub-packed in 20 ml ampoules. The solution in ampoules has been measured by flame atomic absorption spectrophotometry without significant difference between preparing value and measuring value.

     It is recommended to store the standard solution in a dark and cool place.

     The concentration of this standard solution in ampoule is as following：

铬CHROMIUM   101204