GOST R 51129-98

Level meters of electrical signals. General technical requirements and test methods

Fertilizers. Extraction of phosphorus soluble in mineral acids

United power system and isolated power systems. Relay protection and automation. Requirements for the operation of relay protection devices for power transmission lines at voltage level 110 kV and higher in transient modes that come amid saturation of current transformers

Electric and optical fibre cables. Test methods for non-metallic materials. Part 502. Mechanical tests. Shrinkage test for insulations

Assembling units and pipeline parts. Reducing flanges for Pn 9,81-98,1 MPa (100-1000 kgf/cm2). Construction and dimensions

Calculation of the lower and upper limits for the average outer dimensions of cables with circular copper conductors and of rated voltages up to and including 450/750 V