（a） 本标准适用于:（J）带机械密封的轴向全流量涡轮流量计 和/或其旋转部件为 由可压缩流体驱动；（2） 用涡轮流量计测量气体；这个 仪表的构造、安装、操作、性能 特征、数据计算和表示， 校准、现场检查和其他相关注意事项 计程表的一部分。（b） 本标准不适用于:（J）用于测量压力的附属设备 以及温度和/或密度进行精确测定 指质量或基本体积，或那些附件 用于自动计算质量或基准体积；（2） 蒸汽计量或两相流测量；（3） 涉及脉动流或脉动流的应用 对流量计精度产生不利影响的流量 可以预见。

(a) This Standard applies to:(J) axial full-flow turbine meters with mechanical and/or electrical outputs whose rotating member is driven by a compressible fluid;(2) the measurement of gas by a turbine meter; the meter's construction, installation, operation, performance characteristics, data computation and presentation, calibration, field checking, and other related considerations of the meter.(b) This Standard does not apply to:(J) accessory equipment used to measure pressure and temperature, and/or density for the accurate determination of mass or base volumes, or those accessories used to automatically compute mass or base volumes;(2) steam metering or two-phase flow measurement;(3) applications involving pulsating flow or fluctuating flows where adverse effects on meter accuracy can be anticipated.