IEC 60051-4 Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories Part 4: Special Requirements for Frequency Meters - Fourth Edition
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- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- ISO 14694 Industrial Fans - Specifications for Balance Quality and Vibration Levels - First Edition
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- ISO 14694 Industrial Fans - Specifications for Balance Quality and Vibration Levels - First Edition
- 21.120
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- ISO 13348 Industrial fans — Tolerances, methods of conversion and technical data presentation - Second Edition
- BSI BS EN ISO 5801 Industrial fans - Performance testing using standardized airways - CORR: May 31, 2009; CORR: October 31, 2010
- Картотека зарубежных и международных стандартов
IEC 60051-4 Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories Part 4: Special Requirements for Frequency Meters - Fourth Edition
