GOST R 57774-2017

Food-stuffs. Methods for detection and determination of Escherichia coli

Textiles. Preparation of laboratory test samples and test specimens for chemical testing

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

Cable reels for household and similar purposes. General requirements and test methods

Medical electrical equipment. Part 2-65. Particular requirements for the basic safety and essential performance of dental intra-oral X-ray equipment

Fresh green vegetables. Specifications