Occupational safety standards system. Respiratory devices and self-rescuers for protection of bodies of breath. Method of definition of operational characteristics
Transportable gas cylinders. Compatibility of cylinder and valve materials with gas contents. Part 4. Test methods for selecting steels resistant to hydrogen embrittlement
Electromagnetic compatibility of technical equipment. Railway systems and equipment. Part 5. Electromagnetic emission and immunity of fixed power supply installations and apparatus. Requirements and test methods
