UL 1638

Visible Signaling Devices

Org/Number ID	UL 1638
Alternate Organization ID / number	ANSI/UL
Version(s)	1990
Bin #	0429
Comments
Status	Present
Record last updated	June 14, 2022, 5:46 pm

This is not the most recent edition of this standard.

Newer edition note: 2016