Calculation procedure for durability of spring set (turns), spring suppression of the railway rolling stock under the action of longitudinal and combined loads
Mass concentration of nitrogen oxide and nitrogen dioxide in atmosphere air samples. The procedure of measurement by photometric method using sulfanilic acid and I-naphthylamine
Order of using welding equipment for manufacture, assembly, repair and reconstruction of production devices for hazardous industrial facilities (Regulation No. 102 of 19.06.03 of the State Mine Engineering Inspectorate (Gosgortekhnadzor) of the Russian Federation