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DEtga ???? ??? ??????
?? 22??? tga ???? ??? ??????? ??? ??? ??.
?? ???? tga ???? ??? ??????? ??? ??? ??? ????: ??, ?? ??.
SCC, tga ???? ??? ??????
NEMA - National Electrical Manufacturers Association, tga ???? ??? ??????
AGMA - American Gear Manufacturers Association, tga ???? ??? ??????
ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., tga ???? ??? ??????
IPC - Association Connecting Electronics Industries, tga ???? ??? ??????
API - American Petroleum Institute, tga ???? ??? ??????
Danish Standards Foundation, tga ???? ??? ??????