Roofing and hydraulic-insulating flexible polymeric (thermoplastic or elastomer) materials. Methods for determination of thickness and mass per unit area
United power system and isolated power systems. Relay protection and automation. Differential protection of power lines 110-220 kV. Functional requirements
Medical electrical equipment. Part 2-51. Particular requirements for safety, including essential performance, of recording and analyzing single channel and multichannel electrocardiographs
Reciprocating internal combustion engines. Safety requirements for design and construction of engines for use in potentially explosive atmospheres. Part 3. Group III engines for use in flammable dust atmospheres
