PUBLISHED
ISO 12759-4:2019
PROJECT
ISO 12759-4:2019/DAmd 1
40.20
DIS ballot initiated: 12 weeks
Feb 16, 2026
Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed - Amendment 1: Addition of Annex F providing an example of the use of efficiency classification and editorial changes (ISO 12759-4:2019/DAM 1:2026)
40.20 DIS ballot initiated: 12 weeks
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