Laboratory test results are of vital importance for correctly classifying and labelling chemicals as “hazardous” as defined in the UN Globally Harmonized System (GHS)/EC CLP Regulation or as “dangerous goods” as defined in the UN Recommendations on the Transport of Dangerous Goods. Interlaboratory tests play a decisive role in assessing the reliability of laboratory test results. Interlaboratory tests performed over the last 10 years have examined different laboratory test methods. After analysing the results of these interlaboratory tests, the following conclusions can be drawn:

1

There is a need for improvement and validation for all laboratory test methods examined.

2

To avoid any discrepancy concerning the classification and labelling of chemicals, the use of validated laboratory test methods should be state of the art, with the results accompanied by the measurement uncertainty and (if applicable) the probability of incorrect classification.

This paper addresses the probability of correct/incorrect classification (for example, as dangerous goods) on the basis of the measurement deviation obtained from interlaboratory tests performed by the Centre for quality assurance for testing of dangerous goods and hazardous substances (CEQAT-DGHS) to validate laboratory test methods. This paper outlines typical results (e.g. so-called “Shark profiles” – the probability of incorrect classification as a function of the true value estimated from interlaboratory test data) as well as general conclusions and steps to be taken to guarantee that laboratory test results are fit for purpose and of high quality.

中文翻译：

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CEQAT-DGHS化学品安全实验室间测试：通过确定测量不确定度和不正确分类的可能性（包括所谓的“鲨鱼概况”）来验证实验室测试方法

实验室测试结果对于正确地将化学品分类和标签为联合国全球协调制度（GHS）/ EC CLP法规中定义的“危险”或联合国有关危险物品运输的建议中定义为“危险物品”至关重要。实验室间测试在评估实验室测试结果的可靠性中起决定性作用。过去10年间进行的实验室间测试已经检查了不同的实验室测试方法。在分析了这些实验室间测试的结果之后，可以得出以下结论：

1个

需要对所检查的所有实验室测试方法进行改进和验证。

2个

为避免有关化学物质的分类和标签的任何差异，应使用经过验证的实验室测试方法，以确保其最新状态，并伴有测量不确定性和（如果适用）错误分类的可能性。

本文根据危险品和危险物质测试的质量保证中心（CEQAT-DGHS）进行的实验室间测试得出的测量偏差得出了正确/不正确分类（例如，作为危险品）的概率，验证实验室测试方法。本文概述了典型的结果（例如，所谓的“鲨鱼概况” –根据实验室间测试数据估算出的不正确分类作为真实值的函数的可能性），以及为确保实验室测试结果得到保证而应采取的一般性结论和步骤。适合目的和高品质。