标准摘要
[中文适用范围]： 规定了确定排入大气的管道、烟囱和烟囱中气流的速度和体积流量的手动方法。 指定使用两种类型的皮托管（L 型和 S 型）来确定每种皮托管的速度和体积流量。 适用于采样点处密度、温度、流量和压力基本恒定的气流。 [外文原描述]： Specifies manual methods for determining the velocity and volume flowrate of gas streams in ducts, stacks and chimneys vented to the atmosphere. Specifies the use of two types of Pitot tubes, type L und type S, for determining the velocity and the volume flowrate for each type of Pitot tube. Applies to gas streams with essentially constant density, temperature, flowrate and pressure at the sampling point.
英文名称Stationary source emissions — Measurement of velocity and volume flowrate of gas streams in ducts