2014年至2024年,济南兰光已成功举办了十届全球实验室间性比对活动,得到了国内外各方实验室的积极支持。
该活动中,实验室阻隔性能检测结果评价方式为Z比分数统计法。拉伸性能、厚度比对结果则通过经典的离群统计检验方法Cochran检验法联合Grubbs检验法进行评价分析。历届实验室间比对活动情况如下:
比对项目 | 年份 | 结果数 | 可疑值 | 离群值 | |
氧气透过量 | 2014 | 104 | 6% | 1% | |
2015 | 79 | 4% | 1% | ||
2016 | 90 | 6% | 3% | ||
2017 | 81 | 9% | 7% | ||
2018 | 88 | 3% | 6% | ||
2019 | 94 | 2% | 5% | ||
2020 | 73 | 1% | 4% | ||
2021 | 86 | 3% | 3% | ||
2022 | 105 | 3% | 10% | ||
2023 | 111 | 3% | 4% | ||
水蒸气透过量 | 2014 | 110 | 7% | 7% | |
2015 | 87 | 3% | 6% | ||
2016 | 100 | 11% | 5% | ||
2017 | 91 | 8% | 11% | ||
2018 | 94 | 4% | 10% | ||
2019 | 102 | 1% | 7% | ||
2020 | 92 | 5% | 5% | ||
2021 | 89 | 3% | 9% | ||
2022 | 112 | 3% | 10% | ||
2023 | 113 | 1% | 6% | ||
拉伸性能 | 拉断力 | 2017 | 59 | 8% | 8% |
2018 | 76 | 7% | 4% | ||
2019 | 96 | 1% | 9% | ||
2021 | 95 | 0% | 9% | ||
2022 | 126 | 1% | 2% | ||
2023 | 111 | 3% | 8% | ||
断裂标称应变 | 2019 | 96 | 2% | 14% | |
2021 | 90 | 1% | 22% | ||
2022 | 123 | 2% | 9% | ||
2023 | 111 | 3% | 11% | ||
拉伸强度 | 2017 | 59 | 2% | 12% | |
2018 | 76 | 1% | 12% | ||
厚度 | 2019 | 93 | 0% | 6% |