塑料薄膜氧气透过量测定能力验证研究

目的：组织实施塑料薄膜氧气透过量测定能力验证项目，评价检验机构对氧气透过量的检测能力。方法：制备单一水平样品，采用单因素方差分析对样品均匀性进行检验。对能力验证结果进行统计分析，以z比分数评价实验室检测能力。结果：样品均匀性符合要求，满足能力验证计划要求。38家实验室参加塑料薄膜氧气透过量能力验证项目，满意数为34家，满意率为89.5%。结论：多数实验室检测结果满意，部分实验室检测能力有待提高。

Proficiency Testing Study on the Determination of Oxygen Gas Transmission of Plastic Films

Objective: To carry out a proficiency testing program for determination of the oxygen gas transmission of plastic films in order to evaluate the testing capacity the inspection facilities in determining oxygen gas transmission. Methods: The single-level test sample was prepared for this program. The sample homogeneity of oxygen gas transmission of the plastic films was assessed by one-way analysis of variance (ANOVA). The results of the proficiency testing program were analyzed by statistical analysis and the proficiency of the participant laboratories was evaluated by Z scores. Results: The analysis results showed that the homogeneity of the sample met the requirements of the proficiency testing program. 38 laboratories participated in the program, among which 34 laboratories had satisfactory results and the satisfaction rate was 89.5%. Conclusion: The majority of participant laboratories have satisfactory results, while testing capabilities of some laboratories need to be improved.