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Modulator flash tubes with anode dissipation above 25 W. Method of electric strength test
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Information technology. ASNÂť.1 encoding rules: Specification of Encoding Control Notation (ECN)
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Photography. Photographic lenses. Distance scale markings
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Electromagnetic compatibility of technical equipment. Electrical equipment for measurement, control and laboratory use. Part 2-4. Particular requirements for insulation monitoring devices and insulation fault location equipment. Test configurations, operational conditions and performance criteria
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Television camera tubes. Methods of measuring for parameters
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