Electric cables. Calculation of the current rating. Part 1-3. Current rating equations (100 % load factor) and calculation of losses. Current sharing between parallel single-core cables and calculation of circulating current losses
Automobile roads of general use. Crushed stone and gravel from rocks. Determining the presence of organic impurities in the gravel and gravel crushed stone
Interstate system for standardization. Interstate standards, rules and recommendations on interstate standardization. General requirements for structure, drafting, presentation, content and indication
