BS PD CEN/TR 16797-2:2015提供了关于申报价值的统计评估指南 危险物质的释放、排放和/或含量。本报告提供了统计数据 型式试验（TT）、进一步试验（FT）的标准，以及产品已被证明 与释放量、排放量或含量的测量值一致，显著低于 声明值，即不允许进行进一步测试（NFT）的点。CEN/TR 16797-1定义了一系列基本原则，并介绍了两种统计方法 定义第一种方法是使用变量评估，这种方法需要数据 正态分布或对数正态分布。建议将此方法作为默认选项。这个 基于属性评估的替代方法适用于不适用的数据集 正态分布或对数正态分布。 这种评估方式的缺点是需要更多的测试数据 需要相同级别的可靠性。CEN/TR 16797-1介绍了这些评估程序 CEN/TR 16797-2提供了更多细节和统计证据，证明它们满足这些原则 定义见CEN/TR 16797-1。对于这两种方法，测试的最低频率是 平均值和声明值之间的距离函数，以及数据集的可变性， i、 e.样品标准偏差。为了降低测试成本，生产类似产品的生产厂可以共享数据，例如 将产品分组，以便对申报值进行统计评估。使用规则 本文给出了集群。本文件还包含识别数据集中异常值的规则和使用测试的指南 除《金融时报》的参考方法外，本文件还列出了产品技术委员会的任务清单，作为《金融时报》的示范条款 产品和产品规则中可能引用的标准或应用 复制到产品标准中。交叉引用:CEN/TR 16797-1:2015CEN/TR 15858 CEN/TR 16220DS 129rev5:2010CEN/TC 351 N 0286CEN/TR 16496:2013EN 16687ISO 3534-1ISO 3534-2ISO 5725-1ISO 5725-2购买本文件时提供的所有现行修改件均包含在购买本文件中。

BS PD CEN/TR 16797-2:2015 provides guidance on the statistical assessment of declared values with respect to the release, emission and/or content of dangerous substances. This report provides statisticallybased criteria for type-testing (TT), further-testing (FT) and where a product has been shown to be consistent with measured values for the release, emission or content that are significantly below the declared values, the point where no-further-testing (NFT) is permitted.A series of fundamental principles are defined in CEN/TR 16797-1 and two statistical approaches are defined. The first approach is to use assessment by variables and this approach requires the data to be normally or log-normally distributed. This approach is recommended as the default option. The alternative approach based on assessment by attributes is appropriate for data sets that are not normally or log-normally distributed. The downside to this form of assessment is that more test data are needed for the same level of reliability. CEN/TR 16797-1 introduces these assessment procedures and CEN/TR 16797-2 provides more detail and the statistical proof that they satisfy the principles defined in CEN/TR 16797-1. With both of these approaches the minimum frequency of testing is a function of the distance between the mean value and declared value and the variability of the data set, i.e. the sample standard deviation.To reduce the costs of testing, production plants producing a similar product may share data, e.g. be grouping the product into clusters for statistical assessment of declared values. Rules for the use of clusters are given in this document.This document also contains rules for identifying outliers within a data set and guidance on using tests other than the reference method for FT.A list of tasks for product technical committees is given in this document as is a model clause for including in product standards and rules of applications that may be cited in the product standard or copied into product standards.Cross References:CEN/TR 16797-1:2015CEN/TR 15858CEN/TR 16220DS 129rev5:2010CEN/TC 351 N 0286CEN/TR 16496:2013EN 16687ISO 3534-1ISO 3534-2ISO 5725-1ISO 5725-2All current amendments available at time of purchase are included with the purchase of this document.