BS EN 16450:2017:为了符合欧盟空气质量指令要求，参考方法如下: 不适用于测量颗粒物质量浓度的指令2008/50/EC[1] 通常用于常规监测网络中的操作。这些网络通常采用自动化 连续测量系统（AMS），例如基于振动微天平的系统， Β-射线衰减，或现场光学方法。此类AMS通常能够产生24小时平均值 测量范围高达1000µg/m3的测量值和1小时的平均测量值 如果适用，最大值为10 000µg/m3，其中空气体积为环境条件下的体积 靠近入口。1小时平均值可用于:公众的直接信息；聚合以生成监管报告的日或年平均浓度值 目的。注:国家监管报告目的可能需要其他时间基础的平均值（即每月）。 指令2008/50/EC允许在证明与标准等效后使用此类系统 参考方法，即在证明这些系统满足 连续测量。参考文献[2]给出了等效性证明指南。本欧洲标准规定了车辆的最低性能要求和试验程序 颗粒物适当AMS的型式试验。该标准包括对其性能的评估 与指令2008/50/EC中规定的参考方法等效。此外，本欧洲标准描述了持续质量保证的最低要求- 现场部署的AMS的质量控制（QA/QC）。这些要求对于确保 在延长的时间内，测量浓度的不确定度保持在要求的范围内 在现场进行持续监测，包括维护、校准和控制程序 检查。本文还介绍了确定仪器是否等同于 参考方法通过可能的污染气候变化保持，持续时间超过 五年。最后，本欧洲标准描述了治疗的统一要求和程序 以及用于组装日平均值或年平均值的原始测量数据的验证 浓度值。具有数据处理和验证的现有方法的经验-类似 AMS-已经表明，不同的数据处理和验证方法可能会导致 相似数据集的报告结果存在显著差异[3]。当欧洲标准用于除欧洲标准要求的测量以外的目的时 指令2008/50/EC，范围和不确定度要求可能不适用。 本欧洲标准包含针对不同用户群体的信息。第5条、第6条和附件A载有关于自动连续监测原则的一般信息 颗粒物测量系统和相关设备。交叉引用:EN 123412008/50/EC89/654/EECEN 14211:2012JCGM 200:2012ISO/IEC指南98-3:2008GUM:1995EN ISO/IEC 17025:2005ISO/IEC 17025:2005EN 50160:2010ISO 21501-4:2007EN 15267-1EN 15267-2购买本文件时提供的所有当前修订版均包括在内。

BS EN 16450:2017: In order to be in compliance with EU Air Quality Directive requirements, the reference methods given in the Directive 2008/50/EC [1] for the measurement of mass concentrations of particulate matter are not commonly used for operation in routine monitoring networks. These networks usually apply automated continuous measurement systems (AMS), such as those based on the use of oscillating microbalances, Β-ray attenuation, or in situ optical methods. Such AMS are typically capable of producing 24-h average measurement values over a measurement range up to 1 000 µg/m3 and 1-h average measurement values up to 10 000 µg/m3, if applicable, where the volume of air is the volume at ambient conditions near the inlet.The 1-h average values may be used for:direct information of the public;aggregation to produce daily or yearly average concentration values for regulatory reporting purposes.NOTE National regulatory reporting purposes could require other time basis for averages (i.e. monthly). Directive 2008/50/EC allows the use of such systems after demonstration of equivalence with the reference method, i.e. after demonstration that these systems meet the Data Quality Objectives for continuous measurements. Guidelines for the demonstration of equivalence are given in Reference [2].This European Standard lays down the minimum performance requirements and test procedures for the type testing of appropriate AMS for particulate matter. The standard includes the evaluation of its equivalence with the reference method as laid down in Directive 2008/50/EC.Further, this European Standard describes minimum requirements for ongoing quality assurance - quality control (QA/QC) of AMS deployed in the field. These requirements are necessary to ensure that uncertainties of measured concentrations are kept within the required limits during extended periods of continuous monitoring in the field, and include procedures for maintenance, calibration and control checks.Additional procedures are described that determine whether an instrument's equivalence to the reference method is maintained through possible pollution climate changes, over periods longer than five years.Lastly, this European Standard describes harmonized requirements and procedures for the treatment and validation of raw measurement data that are used for the assembly of daily or yearly average concentration values. Experience with existing methods for data treatment and validation - for similar AMS - has shown that the different ways of data treatment and validation applied may lead to significant differences in reported results for similar data sets [3].When the European Standard is used for purposes other than measurements required by Directive 2008/50/EC, the range and uncertainty requirements may not apply.This European Standard contains information for different groups of users.Clauses 5 and 6 and Annex A contain general information about the principles of automated continuous measurement systems for particulate matter, and relevant equipment.Cross References:EN 123412008/50/EC89/654/EECEN 14211:2012JCGM 200:2012ISO/IEC Guide 98-3:2008GUM:1995EN ISO/IEC 17025:2005ISO/IEC 17025:2005EN 50160:2010ISO 21501-4:2007EN 15267-1EN 15267-2All current amendments available at time of purchase are included with the purchase of this document.