本技术报告（TR）为燃气消耗的测量和报告提供了基于性能的方法。本文件在以下方面提供了指导，以使用户实现有针对性的测量不确定度:流量计类型的选择；压差（DP）、位移、超声波、科里奥利、涡流、涡轮、热力和其他；测量流体性质和流动条件的相关仪器，如压力和温度变送器、密度计、气相色谱仪；获取和使用气体成分或其他分析数据；测量系统的设计和安装要求；流量计及其相关附属仪表的检查、验证和校准规程；并通过实例简化了不确定性计算，以说明该方法。描述了评估燃气测量系统单个组件和整个设施燃气测量不确定度的技术。

This Technical Report (TR) provides a performance-based methodology for the measurement and reporting of fuel gas consumption. The document provides guidance in the following areas to allow the user to achieve a targeted uncertainty of measurement:selection of flow meter type; differential pressure (DP), displacement, ultrasonic, Coriolis, vortex, turbine, thermal, and others;associated instrumentation for measuring fluid properties and flowing conditions, such as pressure and temperature transmitters, densitometers, gas chromatographs;obtaining and use of gas composition or other analytical data;design and installation requirements of the measurement system;inspection, verification and calibration practices of flow meters and their associated accessory instrumentation; andsimplified uncertainty calculations with examples to illustrate the methodology.Techniques are described to assess the uncertainty contribution of individual components of fuel gas measurement systems and overall facility fuel gas measurement uncertainty.