Air transport. Safety management system of aviation activity. Data base. Aviation risks arising from certain types of operating activities: transport types
Occupational safety standards system. Special footwear for protection against risks in foundries and welding shops. Part 1. Requirements and methods of testing shoes against risks in foundries
Cables with circular coper conductors and of rated voltages up to and including 450/750 V. Calculation of the lower and upper limits for the average outer dimensions