USAS C78.254

R-20 BULB MEDIUM SCREW BASE INCANDESCENT LAMP

Org/Number IDUSAS C78.254
Alternate Organization ID / numberANSI NEMA
Version(s)1966
Bin #0503
CommentsSuperseded By: ANSI C78.21
StatusPresent
Record last updatedJune 20, 2022, 6:25 pm

This is not the most recent edition of this standard.

Newer edition note: 1981