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Project

ISO/DIS 5222-3

Heat recovery ventilators and energy recovery ventilators - Testing and calculating methods for seasonal performance factor - Part 3: Annual sensible heating and cooling recovery performance factor of heat recovery ventilators (HRV)

Project

ISO/FDIS 5222-2

Heat recovery ventilators and energy recovery ventilators - Testing and calculating methods for seasonal performance factor - Part 2: Sensible cooling recovery seasonal performance factors of heat recovery ventilators (HRV)

Project

DIN EN 61921

Power capacitors - Low-voltage power factor correction banks (IEC 33/589/CDV:2016); German version prEN 61921:2016

Project

DIN IEC 60688

Electrical measuring transducers for converting AC and DC electrical quantities to analogue or digital signals

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