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HD 549 S1
2 current listing(s) — 1 EU harmonised, 1 UK designated.
Current listings
| Edition | List | Title | Presumption from | Withdrawal / cessation | |
|---|---|---|---|---|---|
| HD 549 S1:1989 | EU Low Voltage Directive | Conference systems – Electrical and audio requirements | source | ||
| HD 549 S1:1989 | UK UK Low Voltage (designated) | Conference systems - Electrical and audio requirements | 01/01/2021 | source |
No recorded change events yet for this standard.