GOST 8.586.1-2005
國家測量統一性保證體系.液體流量,氣體流量及質量的孔板儀測量.第1部分:測量方法原理及一般要求
State system for ensuring the uniformity of measurements. Measurements of liquids and gases flow rate and quantity by means of orifice instruments. Part 1. Principle of the method of measurements and general requirements