VDI/VDE 2040 Blatt 2-1976
Basic calculation for flow measurement with nozzles@ orifice plates and venturi tubes; applied formulas and special formulas for gas flow
Berechnungsgrundlagen fuer die Durchflussmessung mit Drosselgeraeten; Gebrauchsformeln und spezielle Formeln fuer Gase
VDI/VDE 2040 Blatt 2-1976相似标准
VDI 2040 Blatt 5-1975 Basic calculation for flow measurement with nozzles@ orifice plates and venturi tubes; uncertainties of measurement
VDI/VDE 2040 Blatt 2-1987 Calculation principles for measurement of fluid flow using orifice plates@ nozzles and venturi tubes; equations and formulae
VDI/VDE 2040 Blatt 3-1987 Calculation of fluid flowrates measured by means of orifice plates@ nozzles and venturi tubes; examples of calculation
VDI/VDE 2040 Blatt 2-1986 Calculation of fluid flowrates; measured by means of orifice plates@ nozzles and venturi tubes; standard equations and formulae
ISO/TR 12767:2007 用压差装置测量流体流量.偏离于ISO 5167给出的操作条件和规范的效果指南