Mechanical structures for radio-electronic equipment. Subracks and associated plug-in units. Dimensions of mechanical structures of the 482,6 mm (19 in) series
Explosive atmospheres. Rules of conformity assessment of quality management systems of service facilities providing installation and initial inspection of Ex installations for use in explosive atmospheres
Safety requirements for electrical equipment for measurement, control and laboratory use. Part 031. Safety requirements for hand-held probe assemblies for electrical measurement and test
