ISO/CD 21684
Fans — Laboratory Methods of Testing Air Circulating Fans for Rating and Certification
Reference number
ISO/CD 21684
Версия 1
Committee Draft
ISO/CD 21684
Проект данного международного стандарта рассматривается комитетом.


This standard shall be used as the basis for testing electrically powered air circulating fan heads and ceiling fans when air is used as the test gas. The scope is limited to air circulating fans with an input power greater than or equal to 125 W—except for ceiling fans that are larger than 1800 mm, which do not have a lower input power limit. The diameter of the fan being tested shall be limited by the minimum dimensions as shown in the applicable test figures. Exclusions: • Jet fans • Powered roof ventilators, induced flow fans, laboratory exhausts • Positive pressure ventilators as defined in ANSI/AMCA Standard 240 • Compressors • Positive displacement machines Only tests that fulfil all mandatory requirements of this standard may be designated as tests conducted in accordance with this standard.

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