BS EN ISO 12759:2015 pdf free.Fans一Efficiency classification for fans. BS EN ISO 12759 establishes a classification of fan efficiency for all fan types driven by motors with an electrical input power range from 0.125 kW to 500 kW. This International Standard is applicable to bare shaft and driven fans, as well as fans integrated into products. Fans integrated into products are measured as stand-alone fans. This International Standard is not applicable to; a) fans for smoke and emergency smoke extraction; b) fans for industrial processes; c) fans for automotive application, trains and planes; d) fans for potentially explosive atmospheres; e) box fans, powered roof ventilators and air curtains: 1) jet fans for use in car parks and tunnel ventilation, 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5801:2007, industrial fans — Performance testing using standardized airways ISO 13348:2007, Industrial fans — Tolerances, methods of conversion and technical data presentation ISO 13349:2010, Fans — Vocabulaiy and definitions of categories IEC 60034-2-1, Rotating electrical machines — Part 2-1: Standard methods for determining…