GOST R 57738-2017

Non-organic porous aggregates for construction work. Test methods

State system for ensuring the uniformity of measurements. State verification schedule for means measuring on Martens scales hardness and indentation scales hardness

Surge protective devices connected to low-voltage power distribution systems. Part 1. Performance requirements and testing methods

Safety requirements for electrical equipment for measurement, control and laboratory use. Part 2-010. Particular requirements for laboratory equipment for the heating of materials

Products wear resistance assurance. The method of testing materials for wear under shock under law temperature conditions

Hexagon socket head shoulder screws. Specification