50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Sep 18, 2026
CENELEC
CLC/SR 104 Environmental conditions, classification and methods of test
European Norm
19.040 Environmental testing
PUBLISHED
HD 478.2.5 S1:1993
IN_DEVELOPMENT
FprEN IEC 60721-2-5:2026
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Sep 18, 2026