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IEC

PDF Standards IEC 61834-10 Ed. 1.0 b:2001

Recording – Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) – Part 10: DTV format
standard by International Electrotechnical Commission, 02/22/2001

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IEC

PDF Standards IEC 60947-5-4 Ed. 2.0 b:2002

Low-voltage switchgear and controlgear – Part 5-4: Control circuit devices and switching elements – Method of assessing the performance of low-energy contacts – Special tests
standard by International Electrotechnical Commission, 10/15/2002

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