BPS Memo Circular No. 23 Series of 2009

BPS Memorandum Circular No. 23 Series of 2009, Implementing Guidelines for the Mandatory Certification of Lamp Control Gear - Ballast for Tubular Fluorescent Lamps covered by PNS IEC 61347-1:2002 "Lamp Control Gear-Part 1: General and safety requirements" and PNS IEC 61347-2-8:2002 "Lamp Control Gear-Part 2: Particular requirements for ballast for tubular fluorescent lamps"