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ISO 12759-4:2019/FDAmd 1

Fans — Efficiency classification for fans — Part 4: Driven fans at maximum operating speed — Amendment 1

General information

50.00   Final text received or FDIS registered for formal approval   Jul 14, 2026

ISO

ISO/TC 117 Fans

International Standard

23.120   Ventilators. Fans. Air-conditioners

Life cycle

PREVIOUSLY

PUBLISHED
ISO 12759-4:2019

NOW

IN_DEVELOPMENT
ISO 12759-4:2019/FDAmd 1
50.00 Final text received or FDIS registered for formal approval
Jul 14, 2026