UDC 621·327·534·2 : 620·1                          ETD 23

(Superseding IS : 2183 and IS : 702·3)

Reaffirmed 2022

1. Scope

1.1 This standard (Part I) specifies the requirements and methods of test to be used for determining the characteristics of high pressure mercury vapour lamps with or without a red correcting fluorescent coating, operating on ac mains with a ballast satisfying the requirements of IS : 6616-1972†