Bearing base constructions for electronic equipment. Thermal management for cabinets, in accordance with the standards of IEC 60297 and IEC 60917 series. Part 1. Design guide. Sizes of interface and position on the thermoelectric systems of cooling (Peltier effect)
Explosive atmospheres. Part 37. Non-electrical equipment for explosive atmospheres. Non electrical type of protection constructional safety 'c', control of ignition source 'b', liquid immersion 'k'
Occupational safety standards system. Respiratory protective devices. Self-contained compressed oxygen and chemical oxygen apparatus for mine rescuers. General specifications
