The development of the GOST 8.586.1,2,3,4,5-2005 Interstate Standards “Liquid and Gas Flow Rate and Volume Measurement by Means of Standard Pressure Differential Devices” was caused by the introduction of ISO 5167.1,2,3,4-2003 International Standards on normalization of flow rate measurement by means of pressure differential method in West European countries.

The Institute of Energy Audit and Energy Carrier Accounting has developed the “Raskhod-RU” automated system for calculation and design (ASCD) of pressure differential flow meters according to the requirements of the new GOST 8.586.1,2,3,4,5-2005 Interstate Standards.