锌合金中微量铅含量检测相关标准的探讨

Discussion on results of the proficiency testing of the determination of trace lead and cadmium in Zinc Alloy

通过对参加辞及锌合金中铅和铬的测定的能力验证活动中遇到的铅含量可疑数据的分析、试验和验证,认为相关检测标准中关于微量铅含量的辞基体匹配的不同规定,是造成能力验证试验数据可疑的根本原因。建议相关辞合金中微量铅含量的检测标准应增加辞基体匹配的相关规定。

In this paper, the suspicious data of lead content in zinc alloys in the proficiency test were analyzed, tested and validated. The different mles of zinc matrix matching for trace lead content in the corresponding testing standards are the fundamental reasons for the suspicious data of this proficiency test. It is suggested that the relevant standards for the determination of trace lead content in zinc alloys should include the relevant provisions for the matching of zinc matrix.