标准摘要
[中文适用范围]： EN ISO 16911-1 规定了一种定期测定排放管道和烟囱内气体轴向速度和体积流量的方法。该方法适用于测量位置符合 EN 15259 要求的圆形或矩形管道。最小和最大管道尺寸由 EN ISO 16911-1 中描述的测量设备的实际考虑决定。EN ISO 16911-1 要求所有流量测量都必须具有可证明的计量可追溯性，以符合国家或国际主要标准。要用作标准参考方法，用户需要证明该方法的性能特征等于或优于 EN ISO 16911-1 中定义的性能标准，并且确定并报告该方法的总体不确定度（以 95% 的置信度表示）。EN ISO 16911-1 中定义的每种方法的结果在流速为 20 m/s 时都有不同的不确定度，在 1% 到 10% 的范围内。只要用户能够根据 CEN/TS 14793 的原则证明等效性，就可以使用其他方法。 [外文原描述]： ISO 16911-1:2013 specifies a method for periodic determination of the axial velocity and volume flow rate of gas within emissions ducts and stacks. It is applicable for use in circular or rectangular ducts with measurement locations meeting the requirements of EN 15259. Minimum and maximum duct sizes are driven by practical considerations of the measurement devices described within ISO 16911-1:2013. ISO 16911-1:2013 requires all flow measurements to have demonstrable metrological traceability to national or international primary standards. To be used as a standard reference method, the user is required to demonstrate that the performance characteristics of the method are equal to or better than the performance criteria defined in ISO 16911-1:2013 and that the overall uncertainty of the method, expressed with a level of confidence of 95 %, is determined and reported. The results for each method defined in ISO 16911-1:2013 have different uncertainties within a range of 1 % to 10 % at flow velocities of 20 m/s. Methods further to these can be used provided that the user can demonstrate equivalence, based on the principles of CEN/TS 14793.
英文名称Stationary source emissions — Manual and automatic determination of velocity and volume flow rate in ducts — Part 1: Manual reference method