This standard specifies the flow measuring devices and methods for positive displacement compressors (hereinafter referred to as "compressors"). This standard applies to the measurement of compressor flow. The measurement of the flow rate in the gas pipeline can also be used by reference. This standard is not applicable to the measurement of the flow rate in the pipeline where the flow rate is unstable, the gas has a phase change, solid or liquid substances are precipitated in the gas, and the upstream gas of the throttling part is a sonic or supersonic flow.
GB/T 15487-2015 Referenced Document
GB/T 2624 Measurement of fluid flow by means of orifice plates,nozzles and Venturi tubes inserted in circular cross-section conduits running full