State system for ensuring the uniformity of measurements. Instruments measuring the characteristics of artificial and natural radiation for the safety of museum exhibits. Methods for verification
Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses. Part 2-2. Applicability of the general rules to RCBO's functionally dependent on line voltage
Tubes for boiler and heat exchanging equipment. Specifications. Part 1. Seamless steel pipes to work under pressure not more than 6,4 MPa and at temperatures not exceeding 400 °C
