Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 1: General principles and requirements
Electrical equipment for measurement, control and laboratory use—EMC requirements—Part 2-5: Particular requirements—Test configurations, operational conditions and performance criteria for field devices with field bus interfaces according to IEC 61784-1
Industrial-process measurement and control—Data structures and elements in process equipment catalogues—Part 16: Lists of properties (LOPs) for density measuring equipment for electronic data exchange