GOST R 59587-2021

Railway overhead contact line. Technical requirements and control methods

Premixes. Determination of vitamins: B1 (thiaminchloride), B2 (riboflavin), B3 (pantothenic acid), B5 (nicotinic acid and nicotinamide), B6 (pyridoxine), Bc (folic acid), C (ascorbic acid) content by method of capillary electrophoresis

Unified system for design documentation. Graphical symbols in diagrams. Acoustic devices

Sound broadcasting digital. Coding of signals of sound broadcasting with reduction of redundancy for transfer on digital communication audio channels. A part III (MPEG-4 audio). Scalable lossless coding

Biodiesel fuel blends (B6 - B20). Technical requirements

State system for ensuring the uniformity of measurements. Measurement standards. Basic principles